12577972 has 24 divisors (see below), whose sum is σ = 24161760. Its totient is φ = 5681760.

The previous prime is 12577969. The next prime is 12577991. The reversal of 12577972 is 27977521.

It is a happy number.

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, 7078 + ... + 8674.

It is an arithmetic number, because the mean of its divisors is an integer number (1006740).

Almost surely, 2^12577972 is an apocalyptic number.

It is an amenable number.

12577972 is a deficient number, since it is larger than the sum of its proper divisors (11583788).

12577972 is a wasteful number, since it uses less digits than its factorization.

12577972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1789 counting only the distinct ones).

The product of its digits is 61740, while the sum is 40.

The square root of 12577972 is about 3546.5436695465. The cubic root of 12577972 is about 232.5609937482.

It can be divided in two parts, 1257 and 7972, that added together give a palindrome (9229).

The spelling of 12577972 in words is "twelve million, five hundred seventy-seven thousand, nine hundred seventy-two".