764086399 has 2 divisors, whose sum is σ = 764086400. Its totient is φ = 764086398.

The previous prime is 764086391. The next prime is 764086409. The reversal of 764086399 is 993680467.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 764086399 - 2³ = 764086391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764086391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382043199 + 382043200.

It is an arithmetic number, because the mean of its divisors is an integer number (382043200).

Almost surely, 2^764086399 is an apocalyptic number.

764086399 is a deficient number, since it is larger than the sum of its proper divisors (1).

764086399 is an equidigital number, since it uses as much as digits as its factorization.

764086399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 764086399 is about 27642.1127810448. The cubic root of 764086399 is about 914.2132044163.

The spelling of 764086399 in words is "seven hundred sixty-four million, eighty-six thousand, three hundred ninety-nine".