12920632 has 8 divisors (see below), whose sum is σ = 24226200. Its totient is φ = 6460312.

The previous prime is 12920581. The next prime is 12920647. The reversal of 12920632 is 23602921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12920597 and 12920606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807532 + ... + 807547.

It is an arithmetic number, because the mean of its divisors is an integer number (3028275).

Almost surely, 2^12920632 is an apocalyptic number.

It is an amenable number.

12920632 is a deficient number, since it is larger than the sum of its proper divisors (11305568).

12920632 is a wasteful number, since it uses less digits than its factorization.

12920632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615085 (or 1615081 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 12920632 is about 3594.5280635989. The cubic root of 12920632 is about 234.6539769452.

The spelling of 12920632 in words is "twelve million, nine hundred twenty thousand, six hundred thirty-two".