3656913 has 16 divisors (see below), whose sum is σ = 5381376. Its totient is φ = 2194560.

The previous prime is 3656909. The next prime is 3656923. The reversal of 3656913 is 3196563.

It is not a de Polignac number, because 3656913 - 2² = 3656909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3656903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (336336).

Almost surely, 2^3656913 is an apocalyptic number.

It is an amenable number.

3656913 is a deficient number, since it is larger than the sum of its proper divisors (1724463).

3656913 is a wasteful number, since it uses less digits than its factorization.

3656913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344.

The product of its digits is 14580, while the sum is 33.

The square root of 3656913 is about 1912.3056764022. The cubic root of 3656913 is about 154.0653149605.

The spelling of 3656913 in words is "three million, six hundred fifty-six thousand, nine hundred thirteen".