12639932 has 12 divisors (see below), whose sum is σ = 22482936. Its totient is φ = 6216240.

The previous prime is 12639923. The next prime is 12639941. The reversal of 12639932 is 23993621.

It is an interprime number because it is at equal distance from previous prime (12639923) and next prime (12639941).

It is a junction number, because it is equal to n+sod(n) for n = 12639892 and 12639901.

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, 25658 + ... + 26145.

It is an arithmetic number, because the mean of its divisors is an integer number (1873578).

Almost surely, 2^12639932 is an apocalyptic number.

It is an amenable number.

12639932 is a deficient number, since it is larger than the sum of its proper divisors (9843004).

12639932 is a wasteful number, since it uses less digits than its factorization.

12639932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51868 (or 51866 counting only the distinct ones).

The product of its digits is 17496, while the sum is 35.

The square root of 12639932 is about 3555.2682036662. The cubic root of 12639932 is about 232.9422391774.

The spelling of 12639932 in words is "twelve million, six hundred thirty-nine thousand, nine hundred thirty-two".