761648317 has 2 divisors, whose sum is σ = 761648318. Its totient is φ = 761648316.

The previous prime is 761648309. The next prime is 761648323. The reversal of 761648317 is 713846167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693321561 + 68326756 = 26331^2 + 8266^2 .

It is a cyclic number.

It is not a de Polignac number, because 761648317 - 2³ = 761648309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (761648387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380824158 + 380824159.

It is an arithmetic number, because the mean of its divisors is an integer number (380824159).

Almost surely, 2^761648317 is an apocalyptic number.

It is an amenable number.

761648317 is a deficient number, since it is larger than the sum of its proper divisors (1).

761648317 is an equidigital number, since it uses as much as digits as its factorization.

761648317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 761648317 is about 27597.9766830831. The cubic root of 761648317 is about 913.2397971799.

The spelling of 761648317 in words is "seven hundred sixty-one million, six hundred forty-eight thousand, three hundred seventeen".