765271967 has 2 divisors, whose sum is σ = 765271968. Its totient is φ = 765271966.

The previous prime is 765271961. The next prime is 765271993. The reversal of 765271967 is 769172567.

It is a weak prime.

It is an emirp because it is prime and its reverse (769172567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 765271967 - 2⁴ = 765271951 is a prime.

It is equal to p_39449777 and since 765271967 and 39449777 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 (765271961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382635983 + 382635984.

It is an arithmetic number, because the mean of its divisors is an integer number (382635984).

Almost surely, 2^765271967 is an apocalyptic number.

765271967 is a deficient number, since it is larger than the sum of its proper divisors (1).

765271967 is an equidigital number, since it uses as much as digits as its factorization.

765271967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 50.

The square root of 765271967 is about 27663.5494288061. The cubic root of 765271967 is about 914.6857957470.

The spelling of 765271967 in words is "seven hundred sixty-five million, two hundred seventy-one thousand, nine hundred sixty-seven".