312716285 has 24 divisors (see below), whose sum is σ = 437322240. Its totient is φ = 214043424.

The previous prime is 312716281. The next prime is 312716297. The reversal of 312716285 is 582617213.

It is a happy number.

It is not a de Polignac number, because 312716285 - 2² = 312716281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312716281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216596 + ... + 218034.

It is an arithmetic number, because the mean of its divisors is an integer number (18221760).

Almost surely, 2^312716285 is an apocalyptic number.

312716285 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312716285 is a deficient number, since it is larger than the sum of its proper divisors (124605955).

312716285 is a wasteful number, since it uses less digits than its factorization.

312716285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2338 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 312716285 is about 17683.7859351441. The cubic root of 312716285 is about 678.7609247948.

The spelling of 312716285 in words is "three hundred twelve million, seven hundred sixteen thousand, two hundred eighty-five".