3813501 has 4 divisors (see below), whose sum is σ = 5084672. Its totient is φ = 2542332.

The previous prime is 3813499. The next prime is 3813503. The reversal of 3813501 is 1053183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1053183 = 3 ⋅351061.

It is an interprime number because it is at equal distance from previous prime (3813499) and next prime (3813503).

It is not a de Polignac number, because 3813501 - 2¹ = 3813499 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635581 + ... + 635586.

It is an arithmetic number, because the mean of its divisors is an integer number (1271168).

Almost surely, 2^3813501 is an apocalyptic number.

It is an amenable number.

3813501 is a deficient number, since it is larger than the sum of its proper divisors (1271171).

3813501 is a wasteful number, since it uses less digits than its factorization.

3813501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271170.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 3813501 is about 1952.8187319872. The cubic root of 3813501 is about 156.2336652791.

Adding to 3813501 its reverse (1053183), we get a palindrome (4866684).

The spelling of 3813501 in words is "three million, eight hundred thirteen thousand, five hundred one".