312612477 has 8 divisors (see below), whose sum is σ = 419313216. Its totient is φ = 207160032.

The previous prime is 312612467. The next prime is 312612493. The reversal of 312612477 is 774216213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312612477 - 2¹⁴ = 312596093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312612407) 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, 311488 + ... + 312489.

It is an arithmetic number, because the mean of its divisors is an integer number (52414152).

Almost surely, 2^312612477 is an apocalyptic number.

It is an amenable number.

312612477 is a deficient number, since it is larger than the sum of its proper divisors (106700739).

312612477 is a wasteful number, since it uses less digits than its factorization.

312612477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624147.

The product of its digits is 14112, while the sum is 33.

The square root of 312612477 is about 17680.8505734311. The cubic root of 312612477 is about 678.6858102628.

Adding to 312612477 its sum of digits (33), we get a triangular number (312612510 = T₂₅₀₀₄).

The spelling of 312612477 in words is "three hundred twelve million, six hundred twelve thousand, four hundred seventy-seven".