312677628 has 12 divisors (see below), whose sum is σ = 729581160. Its totient is φ = 104225872.

The previous prime is 312677609. The next prime is 312677669. The reversal of 312677628 is 826776213.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 312677628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13028223 + ... + 13028246.

It is an arithmetic number, because the mean of its divisors is an integer number (60798430).

Almost surely, 2^312677628 is an apocalyptic number.

It is an amenable number.

312677628 is an abundant number, since it is smaller than the sum of its proper divisors (416903532).

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

312677628 is a wasteful number, since it uses less digits than its factorization.

312677628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26056476 (or 26056474 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 312677628 is about 17682.6928944660. The cubic root of 312677628 is about 678.7329548813.

The spelling of 312677628 in words is "three hundred twelve million, six hundred seventy-seven thousand, six hundred twenty-eight".