492759517 has 2 divisors, whose sum is σ = 492759518. Its totient is φ = 492759516.

The previous prime is 492759511. The next prime is 492759559. The reversal of 492759517 is 715957294.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 435515161 + 57244356 = 20869^2 + 7566^2 .

It is a cyclic number.

It is not a de Polignac number, because 492759517 - 2⁷ = 492759389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492759511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246379758 + 246379759.

It is an arithmetic number, because the mean of its divisors is an integer number (246379759).

Almost surely, 2^492759517 is an apocalyptic number.

It is an amenable number.

492759517 is a deficient number, since it is larger than the sum of its proper divisors (1).

492759517 is an equidigital number, since it uses as much as digits as its factorization.

492759517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 49.

The square root of 492759517 is about 22198.1872458091. The cubic root of 492759517 is about 789.8506992332.

The spelling of 492759517 in words is "four hundred ninety-two million, seven hundred fifty-nine thousand, five hundred seventeen".