764400371 has 4 divisors (see below), whose sum is σ = 873600432. Its totient is φ = 655200312.

The previous prime is 764400367. The next prime is 764400383. The reversal of 764400371 is 173004467.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173004467 = 1621 ⋅106727.

It is a cyclic number.

It is not a de Polignac number, because 764400371 - 2² = 764400367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764400311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54600020 + ... + 54600033.

It is an arithmetic number, because the mean of its divisors is an integer number (218400108).

Almost surely, 2^764400371 is an apocalyptic number.

764400371 is a deficient number, since it is larger than the sum of its proper divisors (109200061).

764400371 is a wasteful number, since it uses less digits than its factorization.

764400371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109200060.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 764400371 is about 27647.7914307816. The cubic root of 764400371 is about 914.3384075529.

The spelling of 764400371 in words is "seven hundred sixty-four million, four hundred thousand, three hundred seventy-one".