312677028 has 18 divisors (see below), whose sum is σ = 790378134. Its totient is φ = 104225664.

The previous prime is 312677017. The next prime is 312677063. The reversal of 312677028 is 820776213.

It can be written as a sum of positive squares in only one way, i.e., 303386724 + 9290304 = 17418^2 + 3048^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 8685473 = 312677028 / (3 + 1 + 2 + 6 + 7 + 7 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 312676983 and 312677001.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 4342701 + ... + 4342772.

Almost surely, 2^312677028 is an apocalyptic number.

It is an amenable number.

312677028 is an abundant number, since it is smaller than the sum of its proper divisors (477701106).

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

312677028 is a wasteful number, since it uses less digits than its factorization.

312677028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685483 (or 8685478 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 312677028 is about 17682.6759287162. The cubic root of 312677028 is about 678.7325207387.

The spelling of 312677028 in words is "three hundred twelve million, six hundred seventy-seven thousand, twenty-eight".