316495789 has 2 divisors, whose sum is σ = 316495790. Its totient is φ = 316495788.

The previous prime is 316495747. The next prime is 316495813. The reversal of 316495789 is 987594613.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270865764 + 45630025 = 16458^2 + 6755^2 .

It is a cyclic number.

It is not a de Polignac number, because 316495789 - 2¹¹ = 316493741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316435789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158247894 + 158247895.

It is an arithmetic number, because the mean of its divisors is an integer number (158247895).

Almost surely, 2^316495789 is an apocalyptic number.

It is an amenable number.

316495789 is a deficient number, since it is larger than the sum of its proper divisors (1).

316495789 is an equidigital number, since it uses as much as digits as its factorization.

316495789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 316495789 is about 17790.3285242291. The cubic root of 316495789 is about 681.4844940416.

The spelling of 316495789 in words is "three hundred sixteen million, four hundred ninety-five thousand, seven hundred eighty-nine".