312717632 has 14 divisors (see below), whose sum is σ = 620549178. Its totient is φ = 156358784.

The previous prime is 312717631. The next prime is 312717709. The reversal of 312717632 is 236717213.

It can be written as a sum of positive squares in only one way, i.e., 293916736 + 18800896 = 17144^2 + 4336^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312717631) by changing a digit.

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, 2443043 + ... + 2443170.

Almost surely, 2^312717632 is an apocalyptic number.

312717632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312717632 is a deficient number, since it is larger than the sum of its proper divisors (307831546).

312717632 is an equidigital number, since it uses as much as digits as its factorization.

312717632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886225 (or 4886215 counting only the distinct ones).

The product of its digits is 10584, while the sum is 32.

The square root of 312717632 is about 17683.8240208389. The cubic root of 312717632 is about 678.7618993626.

The spelling of 312717632 in words is "three hundred twelve million, seven hundred seventeen thousand, six hundred thirty-two".