764447923 has 2 divisors, whose sum is σ = 764447924. Its totient is φ = 764447922.

The previous prime is 764447869. The next prime is 764447933. The reversal of 764447923 is 329744467.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 764447923 - 2²⁵ = 730893491 is a prime.

It is not a weakly prime, because it can be changed into another prime (764447933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382223961 + 382223962.

It is an arithmetic number, because the mean of its divisors is an integer number (382223962).

Almost surely, 2^764447923 is an apocalyptic number.

764447923 is a deficient number, since it is larger than the sum of its proper divisors (1).

764447923 is an equidigital number, since it uses as much as digits as its factorization.

764447923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 46.

The square root of 764447923 is about 27648.6513775989. The cubic root of 764447923 is about 914.3573669535.

The spelling of 764447923 in words is "seven hundred sixty-four million, four hundred forty-seven thousand, nine hundred twenty-three".