764672501 has 2 divisors, whose sum is σ = 764672502. Its totient is φ = 764672500.

The previous prime is 764672497. The next prime is 764672621. The reversal of 764672501 is 105276467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 726356401 + 38316100 = 26951^2 + 6190^2 .

It is a cyclic number.

It is not a de Polignac number, because 764672501 - 2² = 764672497 is a prime.

It is a Chen prime.

It is equal to p_39420488 and since 764672501 and 39420488 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764672101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382336250 + 382336251.

It is an arithmetic number, because the mean of its divisors is an integer number (382336251).

Almost surely, 2^764672501 is an apocalyptic number.

It is an amenable number.

764672501 is a deficient number, since it is larger than the sum of its proper divisors (1).

764672501 is an equidigital number, since it uses as much as digits as its factorization.

764672501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 764672501 is about 27652.7123624429. The cubic root of 764672501 is about 914.4468975534.

The spelling of 764672501 in words is "seven hundred sixty-four million, six hundred seventy-two thousand, five hundred one".