13504657 has 8 divisors (see below), whose sum is σ = 14160384. Its totient is φ = 12854688.

The previous prime is 13504643. The next prime is 13504661. The reversal of 13504657 is 75640531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13504657 - 2⁷ = 13504529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13504157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3813 + ... + 6445.

It is an arithmetic number, because the mean of its divisors is an integer number (1770048).

Almost surely, 2^13504657 is an apocalyptic number.

It is an amenable number.

13504657 is a deficient number, since it is larger than the sum of its proper divisors (655727).

13504657 is a wasteful number, since it uses less digits than its factorization.

13504657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 13504657 is about 3674.8682969598. The cubic root of 13504657 is about 238.1375343760.

It can be divided in two parts, 13504 and 657, that added together give a square (14161 = 119²).

The spelling of 13504657 in words is "thirteen million, five hundred four thousand, six hundred fifty-seven".