13502864 has 20 divisors (see below), whose sum is σ = 27064860. Its totient is φ = 6518400.

The previous prime is 13502861. The next prime is 13502869. The reversal of 13502864 is 46820531.

It can be written as a sum of positive squares in 2 ways, for example, as 2560000 + 10942864 = 1600^2 + 3308^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (13502861) 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, 14087 + ... + 15014.

It is an arithmetic number, because the mean of its divisors is an integer number (1353243).

Almost surely, 2^13502864 is an apocalyptic number.

It is an amenable number.

13502864 is an abundant number, since it is smaller than the sum of its proper divisors (13561996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13502864 is a wasteful number, since it uses less digits than its factorization.

13502864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29138 (or 29132 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 13502864 is about 3674.6243345409. The cubic root of 13502864 is about 238.1269948143.

The spelling of 13502864 in words is "thirteen million, five hundred two thousand, eight hundred sixty-four".