312828087 has 16 divisors (see below), whose sum is σ = 490025088. Its totient is φ = 175008480.

The previous prime is 312828049. The next prime is 312828091. The reversal of 312828087 is 780828213.

It is not a de Polignac number, because 312828087 - 2⁶ = 312828023 is a prime.

It is a super-2 number, since 2×312828087² = 195722824032159138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312828487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364173 + ... + 365030.

It is an arithmetic number, because the mean of its divisors is an integer number (30626568).

Almost surely, 2^312828087 is an apocalyptic number.

312828087 is a deficient number, since it is larger than the sum of its proper divisors (177197001).

312828087 is a wasteful number, since it uses less digits than its factorization.

312828087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729230.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 312828087 is about 17686.9467970026. The cubic root of 312828087 is about 678.8418051227.

The spelling of 312828087 in words is "three hundred twelve million, eight hundred twenty-eight thousand, eighty-seven".