764619497 has 2 divisors, whose sum is σ = 764619498. Its totient is φ = 764619496.

The previous prime is 764619463. The next prime is 764619503. The reversal of 764619497 is 794916467.

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., 498896896 + 265722601 = 22336^2 + 16301^2 .

It is a cyclic number.

It is not a de Polignac number, because 764619497 - 2¹⁰ = 764618473 is a prime.

It is not a weakly prime, because it can be changed into another prime (764619437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382309748 + 382309749.

It is an arithmetic number, because the mean of its divisors is an integer number (382309749).

Almost surely, 2^764619497 is an apocalyptic number.

It is an amenable number.

764619497 is a deficient number, since it is larger than the sum of its proper divisors (1).

764619497 is an equidigital number, since it uses as much as digits as its factorization.

764619497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The square root of 764619497 is about 27651.7539588360. The cubic root of 764619497 is about 914.4257684804.

It can be divided in two parts, 76461 and 9497, that added together give a palindrome (85958).

The spelling of 764619497 in words is "seven hundred sixty-four million, six hundred nineteen thousand, four hundred ninety-seven".