13328577 has 16 divisors (see below), whose sum is σ = 19831680. Its totient is φ = 8847216.

The previous prime is 13328573. The next prime is 13328587. The reversal of 13328577 is 77582331.

It is not a de Polignac number, because 13328577 - 2² = 13328573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13328573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6163 + ... + 8039.

It is an arithmetic number, because the mean of its divisors is an integer number (1239480).

Almost surely, 2^13328577 is an apocalyptic number.

It is an amenable number.

13328577 is a deficient number, since it is larger than the sum of its proper divisors (6503103).

13328577 is a wasteful number, since it uses less digits than its factorization.

13328577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149 (or 2143 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 13328577 is about 3650.8323708437. The cubic root of 13328577 is about 237.0980206623.

The spelling of 13328577 in words is "thirteen million, three hundred twenty-eight thousand, five hundred seventy-seven".