3690913 has 4 divisors (see below), whose sum is σ = 3714580. Its totient is φ = 3667248.

The previous prime is 3690899. The next prime is 3690923. The reversal of 3690913 is 3190963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3190963 = 251 ⋅12713.

It can be written as a sum of positive squares in 2 ways, for example, as 2634129 + 1056784 = 1623^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 3690913 - 2⁵ = 3690881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3690923) 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, 11598 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (928645).

Almost surely, 2^3690913 is an apocalyptic number.

It is an amenable number.

3690913 is a deficient number, since it is larger than the sum of its proper divisors (23667).

3690913 is a wasteful number, since it uses less digits than its factorization.

3690913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23666.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 3690913 is about 1921.1749009395. The cubic root of 3690913 is about 154.5413147995.

The spelling of 3690913 in words is "three million, six hundred ninety thousand, nine hundred thirteen".