12975990 has 32 divisors (see below), whose sum is σ = 31733856. Its totient is φ = 3394560.

The previous prime is 12975983. The next prime is 12976009. The reversal of 12975990 is 9957921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2491 + ... + 5670.

It is an arithmetic number, because the mean of its divisors is an integer number (991683).

Almost surely, 2^12975990 is an apocalyptic number.

12975990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12975990 is an abundant number, since it is smaller than the sum of its proper divisors (18757866).

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

12975990 is a wasteful number, since it uses less digits than its factorization.

12975990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 12975990 is about 3602.2201487416. The cubic root of 12975990 is about 234.9886217518.

The spelling of 12975990 in words is "twelve million, nine hundred seventy-five thousand, nine hundred ninety".