765604001 has 4 divisors (see below), whose sum is σ = 778580400. Its totient is φ = 752627604.

The previous prime is 765603983. The next prime is 765604033. The reversal of 765604001 is 100406567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 765604001 - 2¹⁰ = 765602977 is a prime.

It is a super-2 number, since 2×765604001² = 1172298972694416002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (765604501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6488111 + ... + 6488228.

It is an arithmetic number, because the mean of its divisors is an integer number (194645100).

Almost surely, 2^765604001 is an apocalyptic number.

It is an amenable number.

765604001 is a deficient number, since it is larger than the sum of its proper divisors (12976399).

765604001 is a wasteful number, since it uses less digits than its factorization.

765604001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976398.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 765604001 is about 27669.5500686224. The cubic root of 765604001 is about 914.8180637002.

The spelling of 765604001 in words is "seven hundred sixty-five million, six hundred four thousand, one".