312016427 has 4 divisors (see below), whose sum is σ = 312866976. Its totient is φ = 311165880.

The previous prime is 312016417. The next prime is 312016447. The reversal of 312016427 is 724610213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724610213 = 31 ⋅23374523.

It is a cyclic number.

It is not a de Polignac number, because 312016427 - 2⁶ = 312016363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312016396 and 312016405.

It is not an unprimeable number, because it can be changed into a prime (312016417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424724 + ... + 425457.

It is an arithmetic number, because the mean of its divisors is an integer number (78216744).

Almost surely, 2^312016427 is an apocalyptic number.

312016427 is a deficient number, since it is larger than the sum of its proper divisors (850549).

312016427 is an equidigital number, since it uses as much as digits as its factorization.

312016427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850548.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 312016427 is about 17663.9867244062. The cubic root of 312016427 is about 678.2541916910.

The spelling of 312016427 in words is "three hundred twelve million, sixteen thousand, four hundred twenty-seven".