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3812 = 22953

3812 has 6 divisors (see below), whose sum is σ = 6678. Its totient is φ = 1904.

The previous prime is 3803. The next prime is 3821. The reversal of 3812 is 2183.

Adding to 3812 its reverse (2183), we get a palindrome (5995).

It can be divided in two parts, 381 and 2, that added together give a palindrome (383).

3812 is nontrivially palindromic in base 6.

3812 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (3803) and next prime (3821).

It can be written as a sum of positive squares in only one way, i.e., 3136 + 676 = 56^2 + 26^2 .

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 12.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 3812.

It is an unprimeable number.

3812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473 + ... + 480.

It is an arithmetic number, because the mean of its divisors is an integer number (1113).

It is an amenable number.

3812 is a deficient number, since it is larger than the sum of its proper divisors (2866).

3812 is a wasteful number, since it uses less digits than its factorization.

3812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 955 counting only the distinct ones).

The product of its digits is 48, while the sum is 14.

The square root of 3812 is about 61.7413961617. The cubic root of 3812 is about 15.6213164650.

The spelling of 3812 in words is "three thousand, eight hundred twelve".

Divisors: 1 2 4 953 1906 3812