12591934 has 16 divisors (see below), whose sum is σ = 20120400. Its totient is φ = 5889664.

The previous prime is 12591919. The next prime is 12591937. The reversal of 12591934 is 43919521.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 12591934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12591937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5052 + ... + 7120.

It is an arithmetic number, because the mean of its divisors is an integer number (1257525).

Almost surely, 2^12591934 is an apocalyptic number.

12591934 is a deficient number, since it is larger than the sum of its proper divisors (7528466).

12591934 is a wasteful number, since it uses less digits than its factorization.

12591934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267.

The product of its digits is 9720, while the sum is 34.

The square root of 12591934 is about 3548.5115189330. The cubic root of 12591934 is about 232.6470122760.

The spelling of 12591934 in words is "twelve million, five hundred ninety-one thousand, nine hundred thirty-four".