316286947 has 2 divisors, whose sum is σ = 316286948. Its totient is φ = 316286946.

The previous prime is 316286933. The next prime is 316286951. The reversal of 316286947 is 749682613.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316286947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 316286897 and 316286906.

It is not a weakly prime, because it can be changed into another prime (316286447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158143473 + 158143474.

It is an arithmetic number, because the mean of its divisors is an integer number (158143474).

Almost surely, 2^316286947 is an apocalyptic number.

316286947 is a deficient number, since it is larger than the sum of its proper divisors (1).

316286947 is an equidigital number, since it uses as much as digits as its factorization.

316286947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 46.

The square root of 316286947 is about 17784.4580181686. The cubic root of 316286947 is about 681.3345669280.

It can be divided in two parts, 3162 and 86947, that added together give a palindrome (90109).

The spelling of 316286947 in words is "three hundred sixteen million, two hundred eighty-six thousand, nine hundred forty-seven".