312523847 has 4 divisors (see below), whose sum is σ = 314772360. Its totient is φ = 310275336.

The previous prime is 312523843. The next prime is 312523873. The reversal of 312523847 is 748325213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748325213 = 31 ⋅24139523.

It is a cyclic number.

It is not a de Polignac number, because 312523847 - 2² = 312523843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312523843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124048 + ... + 1124325.

It is an arithmetic number, because the mean of its divisors is an integer number (78693090).

Almost surely, 2^312523847 is an apocalyptic number.

312523847 is a deficient number, since it is larger than the sum of its proper divisors (2248513).

312523847 is a wasteful number, since it uses less digits than its factorization.

312523847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248512.

The product of its digits is 40320, while the sum is 35.

The square root of 312523847 is about 17678.3440118129. The cubic root of 312523847 is about 678.6216652342.

The spelling of 312523847 in words is "three hundred twelve million, five hundred twenty-three thousand, eight hundred forty-seven".