12997588 has 12 divisors (see below), whose sum is σ = 24083892. Its totient is φ = 6116480.

The previous prime is 12997573. The next prime is 12997591. The reversal of 12997588 is 88579921.

12997588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10771524 + 2226064 = 3282^2 + 1492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95503 + ... + 95638.

It is an arithmetic number, because the mean of its divisors is an integer number (2006991).

Almost surely, 2^12997588 is an apocalyptic number.

It is an amenable number.

12997588 is a deficient number, since it is larger than the sum of its proper divisors (11086304).

12997588 is a wasteful number, since it uses less digits than its factorization.

12997588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191162 (or 191160 counting only the distinct ones).

The product of its digits is 362880, while the sum is 49.

The square root of 12997588 is about 3605.2167757293. The cubic root of 12997588 is about 235.1189257719.

The spelling of 12997588 in words is "twelve million, nine hundred ninety-seven thousand, five hundred eighty-eight".