12889724 has 12 divisors (see below), whose sum is σ = 22583064. Its totient is φ = 6437424.

The previous prime is 12889691. The next prime is 12889777. The reversal of 12889724 is 42798821.

It is a super-2 number, since 2×12889724² = 332289969592352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4319 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (1881922).

Almost surely, 2^12889724 is an apocalyptic number.

It is an amenable number.

12889724 is a deficient number, since it is larger than the sum of its proper divisors (9693340).

12889724 is a wasteful number, since it uses less digits than its factorization.

12889724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724 (or 3722 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 12889724 is about 3590.2261767192. The cubic root of 12889724 is about 234.4667189233.

The spelling of 12889724 in words is "twelve million, eight hundred eighty-nine thousand, seven hundred twenty-four".