12872772 has 36 divisors (see below), whose sum is σ = 35498736. Its totient is φ = 3900720.

The previous prime is 12872767. The next prime is 12872807. The reversal of 12872772 is 27727821.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15858 + ... + 16649.

It is an arithmetic number, because the mean of its divisors is an integer number (986076).

Almost surely, 2^12872772 is an apocalyptic number.

12872772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12872772 is an abundant number, since it is smaller than the sum of its proper divisors (22625964).

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

12872772 is a wasteful number, since it uses less digits than its factorization.

12872772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32528 (or 32523 counting only the distinct ones).

The product of its digits is 21952, while the sum is 36.

The square root of 12872772 is about 3587.8645459382. The cubic root of 12872772 is about 234.3638870464.

It can be divided in two parts, 128 and 72772, that added together give a square (72900 = 270²).

The spelling of 12872772 in words is "twelve million, eight hundred seventy-two thousand, seven hundred seventy-two".