312397633 has 4 divisors (see below), whose sum is σ = 322475008. Its totient is φ = 302320260.

The previous prime is 312397621. The next prime is 312397637. The reversal of 312397633 is 336793213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 336793213 = 2393 ⋅140741.

It is a cyclic number.

It is not a de Polignac number, because 312397633 - 2²¹ = 310300481 is a prime.

It is a super-2 number, since 2×312397633² = 195184562208005378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312397592 and 312397601.

It is not an unprimeable number, because it can be changed into a prime (312397637) 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, 5038641 + ... + 5038702.

It is an arithmetic number, because the mean of its divisors is an integer number (80618752).

Almost surely, 2^312397633 is an apocalyptic number.

It is an amenable number.

312397633 is a deficient number, since it is larger than the sum of its proper divisors (10077375).

312397633 is a wasteful number, since it uses less digits than its factorization.

312397633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10077374.

The product of its digits is 61236, while the sum is 37.

The square root of 312397633 is about 17674.7739165173. The cubic root of 312397633 is about 678.5302982462.

The spelling of 312397633 in words is "three hundred twelve million, three hundred ninety-seven thousand, six hundred thirty-three".