764975069 has 2 divisors, whose sum is σ = 764975070. Its totient is φ = 764975068.

The previous prime is 764975051. The next prime is 764975119. The reversal of 764975069 is 960579467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417711844 + 347263225 = 20438^2 + 18635^2 .

It is a cyclic number.

It is not a de Polignac number, because 764975069 - 2⁸ = 764974813 is a prime.

It is a super-2 number, since 2×764975069² = 1170373712383109522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 764975069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764975569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382487534 + 382487535.

It is an arithmetic number, because the mean of its divisors is an integer number (382487535).

Almost surely, 2^764975069 is an apocalyptic number.

It is an amenable number.

764975069 is a deficient number, since it is larger than the sum of its proper divisors (1).

764975069 is an equidigital number, since it uses as much as digits as its factorization.

764975069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The square root of 764975069 is about 27658.1826771030. The cubic root of 764975069 is about 914.5674920492.

The spelling of 764975069 in words is "seven hundred sixty-four million, nine hundred seventy-five thousand, sixty-nine".