761331617 has 2 divisors, whose sum is σ = 761331618. Its totient is φ = 761331616.

The previous prime is 761331547. The next prime is 761331619. The reversal of 761331617 is 716133167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 528586081 + 232745536 = 22991^2 + 15256^2 .

It is a cyclic number.

It is not a de Polignac number, because 761331617 - 2²⁸ = 492896161 is a prime.

Together with 761331619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (761331619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380665808 + 380665809.

It is an arithmetic number, because the mean of its divisors is an integer number (380665809).

Almost surely, 2^761331617 is an apocalyptic number.

It is an amenable number.

761331617 is a deficient number, since it is larger than the sum of its proper divisors (1).

761331617 is an equidigital number, since it uses as much as digits as its factorization.

761331617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 761331617 is about 27592.2383470425. The cubic root of 761331617 is about 913.1132019461.

The spelling of 761331617 in words is "seven hundred sixty-one million, three hundred thirty-one thousand, six hundred seventeen".