312855672 has 32 divisors (see below), whose sum is σ = 823305600. Its totient is φ = 98796384.

The previous prime is 312855649. The next prime is 312855677. The reversal of 312855672 is 276558213.

It is a self number, because there is not a number n which added to its sum of digits gives 312855672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312855677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342588 + ... + 343499.

It is an arithmetic number, because the mean of its divisors is an integer number (25728300).

Almost surely, 2^312855672 is an apocalyptic number.

It is an amenable number.

312855672 is an abundant number, since it is smaller than the sum of its proper divisors (510449928).

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

312855672 is a wasteful number, since it uses less digits than its factorization.

312855672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686115 (or 686111 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 312855672 is about 17687.7265921882. The cubic root of 312855672 is about 678.8617578290.

The spelling of 312855672 in words is "three hundred twelve million, eight hundred fifty-five thousand, six hundred seventy-two".