764698481 has 2 divisors, whose sum is σ = 764698482. Its totient is φ = 764698480.

The previous prime is 764698447. The next prime is 764698513. The reversal of 764698481 is 184896467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707560000 + 57138481 = 26600^2 + 7559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-764698481 is a prime.

It is a super-2 number, since 2×764698481² = 1169527533687414722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (764697481) 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, 382349240 + 382349241.

It is an arithmetic number, because the mean of its divisors is an integer number (382349241).

Almost surely, 2^764698481 is an apocalyptic number.

It is an amenable number.

764698481 is a deficient number, since it is larger than the sum of its proper divisors (1).

764698481 is an equidigital number, since it uses as much as digits as its factorization.

764698481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 53.

The square root of 764698481 is about 27653.1821134567. The cubic root of 764698481 is about 914.4572536476.

The spelling of 764698481 in words is "seven hundred sixty-four million, six hundred ninety-eight thousand, four hundred eighty-one".