13297885 has 8 divisors (see below), whose sum is σ = 15978456. Its totient is φ = 10624320.

The previous prime is 13297877. The next prime is 13297897. The reversal of 13297885 is 58879231.

13297885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1505529 + 11792356 = 1227^2 + 3434^2 .

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

It is not a de Polignac number, because 13297885 - 2³ = 13297877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4395 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (1997307).

Almost surely, 2^13297885 is an apocalyptic number.

It is an amenable number.

13297885 is a deficient number, since it is larger than the sum of its proper divisors (2680571).

13297885 is a wasteful number, since it uses less digits than its factorization.

13297885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503.

The product of its digits is 120960, while the sum is 43.

The square root of 13297885 is about 3646.6265232403. The cubic root of 13297885 is about 236.9158905606.

The spelling of 13297885 in words is "thirteen million, two hundred ninety-seven thousand, eight hundred eighty-five".