12961624 has 24 divisors (see below), whose sum is σ = 26319060. Its totient is φ = 5981664.

The previous prime is 12961621. The next prime is 12961657. The reversal of 12961624 is 42616921.

12961624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12961621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3442 + ... + 6145.

Almost surely, 2^12961624 is an apocalyptic number.

It is an amenable number.

12961624 is an abundant number, since it is smaller than the sum of its proper divisors (13357436).

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

12961624 is a wasteful number, since it uses less digits than its factorization.

12961624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9619 (or 9602 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 12961624 is about 3600.2255484900. The cubic root of 12961624 is about 234.9018693953.

The spelling of 12961624 in words is "twelve million, nine hundred sixty-one thousand, six hundred twenty-four".