312608906 has 4 divisors (see below), whose sum is σ = 468913362. Its totient is φ = 156304452.

The previous prime is 312608899. The next prime is 312608917. The reversal of 312608906 is 609806213.

312608906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 246333025 + 66275881 = 15695^2 + 8141^2 .

It is a super-2 number, since 2×312608906² = 195448656221033672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78152225 + ... + 78152228.

Almost surely, 2^312608906 is an apocalyptic number.

312608906 is a deficient number, since it is larger than the sum of its proper divisors (156304456).

312608906 is a wasteful number, since it uses less digits than its factorization.

312608906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156304455.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 312608906 is about 17680.7495881821. The cubic root of 312608906 is about 678.6832260236.

The spelling of 312608906 in words is "three hundred twelve million, six hundred eight thousand, nine hundred six".