13099977 has 24 divisors (see below), whose sum is σ = 20842848. Its totient is φ = 7862400.

The previous prime is 13099937. The next prime is 13099991. The reversal of 13099977 is 77999031.

It is not a de Polignac number, because 13099977 - 2⁶ = 13099913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13099927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10602 + ... + 11772.

It is an arithmetic number, because the mean of its divisors is an integer number (868452).

Almost surely, 2^13099977 is an apocalyptic number.

It is an amenable number.

13099977 is a deficient number, since it is larger than the sum of its proper divisors (7742871).

13099977 is a wasteful number, since it uses less digits than its factorization.

13099977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 13099977 is about 3619.3890368403. The cubic root of 13099977 is about 235.7346977994.

The spelling of 13099977 in words is "thirteen million, ninety-nine thousand, nine hundred seventy-seven".