13071772 has 24 divisors (see below), whose sum is σ = 27520640. Its totient is φ = 5307120.

The previous prime is 13071769. The next prime is 13071787. The reversal of 13071772 is 27717031.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 13071772.

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, 11754 + ... + 12817.

Almost surely, 2^13071772 is an apocalyptic number.

It is an amenable number.

13071772 is an abundant number, since it is smaller than the sum of its proper divisors (14448868).

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

13071772 is a wasteful number, since it uses less digits than its factorization.

13071772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24601 (or 24599 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 13071772 is about 3615.4905614591. The cubic root of 13071772 is about 235.5653928028.

The spelling of 13071772 in words is "thirteen million, seventy-one thousand, seven hundred seventy-two".