316786212 has 18 divisors (see below), whose sum is σ = 800765238. Its totient is φ = 105595392.

The previous prime is 316786123. The next prime is 316786219. The reversal of 316786212 is 212687613.

It can be written as a sum of positive squares in only one way, i.e., 238887936 + 77898276 = 15456^2 + 8826^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×316786212² = 200707008226617888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 8799617 = 316786212 / (3 + 1 + 6 + 7 + 8 + 6 + 2 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (316786219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4399773 + ... + 4399844.

Almost surely, 2^316786212 is an apocalyptic number.

It is an amenable number.

316786212 is an abundant number, since it is smaller than the sum of its proper divisors (483979026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316786212 is a wasteful number, since it uses less digits than its factorization.

316786212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799627 (or 8799622 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 316786212 is about 17798.4890369941. The cubic root of 316786212 is about 681.6928783455.

The spelling of 316786212 in words is "three hundred sixteen million, seven hundred eighty-six thousand, two hundred twelve".