3812845 has 16 divisors (see below), whose sum is σ = 5004288. Its totient is φ = 2776320.

The previous prime is 3812843. The next prime is 3812899. The reversal of 3812845 is 5482183.

It is not a de Polignac number, because 3812845 - 2¹ = 3812843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3812843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912 + ... + 3358.

It is an arithmetic number, because the mean of its divisors is an integer number (312768).

Almost surely, 2^3812845 is an apocalyptic number.

It is an amenable number.

3812845 is a deficient number, since it is larger than the sum of its proper divisors (1191443).

3812845 is a wasteful number, since it uses less digits than its factorization.

3812845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500.

The product of its digits is 7680, while the sum is 31.

The square root of 3812845 is about 1952.6507624253. The cubic root of 3812845 is about 156.2247063057.

The spelling of 3812845 in words is "three million, eight hundred twelve thousand, eight hundred forty-five".