765002065 has 4 divisors (see below), whose sum is σ = 918002484. Its totient is φ = 612001648.

The previous prime is 765002027. The next prime is 765002087. The reversal of 765002065 is 560200567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560200567 = 47 ⋅11919161.

It can be written as a sum of positive squares in 2 ways, for example, as 267355201 + 497646864 = 16351^2 + 22308^2 .

It is a cyclic number.

It is not a de Polignac number, because 765002065 - 2²⁹ = 228131153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76500202 + ... + 76500211.

It is an arithmetic number, because the mean of its divisors is an integer number (229500621).

Almost surely, 2^765002065 is an apocalyptic number.

It is an amenable number.

765002065 is a deficient number, since it is larger than the sum of its proper divisors (153000419).

765002065 is a wasteful number, since it uses less digits than its factorization.

765002065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153000418.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 765002065 is about 27658.6707019698. The cubic root of 765002065 is about 914.5782502968.

The spelling of 765002065 in words is "seven hundred sixty-five million, two thousand, sixty-five".