12900973 has 4 divisors (see below), whose sum is σ = 12912480. Its totient is φ = 12889468.

The previous prime is 12900959. The next prime is 12901001. The reversal of 12900973 is 37900921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12900973 - 2⁵ = 12900941 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12900073) by changing a digit.

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, 3865 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (3228120).

Almost surely, 2^12900973 is an apocalyptic number.

It is an amenable number.

12900973 is a deficient number, since it is larger than the sum of its proper divisors (11507).

12900973 is a wasteful number, since it uses less digits than its factorization.

12900973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11506.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 12900973 is about 3591.7924494603. The cubic root of 12900973 is about 234.5349062957.

The spelling of 12900973 in words is "twelve million, nine hundred thousand, nine hundred seventy-three".