13072776 has 16 divisors (see below), whose sum is σ = 32682000. Its totient is φ = 4357584.

The previous prime is 13072771. The next prime is 13072789. The reversal of 13072776 is 67727031.

13072776 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13072771) 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, 272326 + ... + 272373.

It is an arithmetic number, because the mean of its divisors is an integer number (2042625).

Almost surely, 2^13072776 is an apocalyptic number.

It is an amenable number.

13072776 is an abundant number, since it is smaller than the sum of its proper divisors (19609224).

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

13072776 is a wasteful number, since it uses less digits than its factorization.

13072776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544708 (or 544704 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 13072776 is about 3615.6294057882. The cubic root of 13072776 is about 235.5714236505.

The spelling of 13072776 in words is "thirteen million, seventy-two thousand, seven hundred seventy-six".