764329879 has 2 divisors, whose sum is σ = 764329880. Its totient is φ = 764329878.

The previous prime is 764329873. The next prime is 764329897. The reversal of 764329879 is 978923467.

Together with next prime (764329897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 764329879 - 2³ = 764329871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764329871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382164939 + 382164940.

It is an arithmetic number, because the mean of its divisors is an integer number (382164940).

Almost surely, 2^764329879 is an apocalyptic number.

764329879 is a deficient number, since it is larger than the sum of its proper divisors (1).

764329879 is an equidigital number, since it uses as much as digits as its factorization.

764329879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The square root of 764329879 is about 27646.5165798514. The cubic root of 764329879 is about 914.3103003259.

The spelling of 764329879 in words is "seven hundred sixty-four million, three hundred twenty-nine thousand, eight hundred seventy-nine".