312948986 has 24 divisors (see below), whose sum is σ = 546751296. Its totient is φ = 133952280.

The previous prime is 312948949. The next prime is 312948991. The reversal of 312948986 is 689849213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105455 + ... + 108381.

It is an arithmetic number, because the mean of its divisors is an integer number (22781304).

Almost surely, 2^312948986 is an apocalyptic number.

312948986 is a deficient number, since it is larger than the sum of its proper divisors (233802310).

312948986 is a wasteful number, since it uses less digits than its factorization.

312948986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034 (or 4027 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 312948986 is about 17690.3642133225. The cubic root of 312948986 is about 678.9292447617.

The spelling of 312948986 in words is "three hundred twelve million, nine hundred forty-eight thousand, nine hundred eighty-six".