13013776 has 10 divisors (see below), whose sum is σ = 25214222. Its totient is φ = 6506880.

The previous prime is 13013773. The next prime is 13013813. The reversal of 13013776 is 67731031.

It can be written as a sum of positive squares in only one way, i.e., 9859600 + 3154176 = 3140^2 + 1776^2 .

It is not an unprimeable number, because it can be changed into a prime (13013771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406665 + ... + 406696.

Almost surely, 2^13013776 is an apocalyptic number.

13013776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13013776 is a deficient number, since it is larger than the sum of its proper divisors (12200446).

13013776 is an equidigital number, since it uses as much as digits as its factorization.

13013776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813369 (or 813363 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 13013776 is about 3607.4611571020. The cubic root of 13013776 is about 235.2164958273.

The spelling of 13013776 in words is "thirteen million, thirteen thousand, seven hundred seventy-six".