316023646 has 4 divisors (see below), whose sum is σ = 474035472. Its totient is φ = 158011822.

The previous prime is 316023607. The next prime is 316023649. The reversal of 316023646 is 646320613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646320613 = 2707 ⋅238759.

It is a super-2 number, since 2×316023646² = 199741889662266632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316023649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79005910 + ... + 79005913.

It is an arithmetic number, because the mean of its divisors is an integer number (118508868).

Almost surely, 2^316023646 is an apocalyptic number.

316023646 is a deficient number, since it is larger than the sum of its proper divisors (158011826).

316023646 is a wasteful number, since it uses less digits than its factorization.

316023646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158011825.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 316023646 is about 17777.0539179021. The cubic root of 316023646 is about 681.1454497582.

The spelling of 316023646 in words is "three hundred sixteen million, twenty-three thousand, six hundred forty-six".