316719649 has 2 divisors, whose sum is σ = 316719650. Its totient is φ = 316719648.

The previous prime is 316719589. The next prime is 316719691. The reversal of 316719649 is 946917613.

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., 310887424 + 5832225 = 17632^2 + 2415^2 .

It is a cyclic number.

It is not a de Polignac number, because 316719649 - 2²⁵ = 283165217 is a prime.

It is a super-2 number, since 2×316719649² = 200622672125366402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 316719599 and 316719608.

It is not a weakly prime, because it can be changed into another prime (316719449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158359824 + 158359825.

It is an arithmetic number, because the mean of its divisors is an integer number (158359825).

Almost surely, 2^316719649 is an apocalyptic number.

It is an amenable number.

316719649 is a deficient number, since it is larger than the sum of its proper divisors (1).

316719649 is an equidigital number, since it uses as much as digits as its factorization.

316719649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 316719649 is about 17796.6190328388. The cubic root of 316719649 is about 681.6451293170.

The spelling of 316719649 in words is "three hundred sixteen million, seven hundred nineteen thousand, six hundred forty-nine".