765906930 has 48 divisors (see below), whose sum is σ = 2002402584. Its totient is φ = 203109120.

The previous prime is 765906913. The next prime is 765906941. The reversal of 765906930 is 39609567.

It can be written as a sum of positive squares in 4 ways, for example, as 590635809 + 175271121 = 24303^2 + 13239^2 .

It is a super-2 number, since 2×765906930² = 1173226850844049800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7219 + ... + 39798.

Almost surely, 2^765906930 is an apocalyptic number.

765906930 is an abundant number, since it is smaller than the sum of its proper divisors (1236495654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

765906930 is a wasteful number, since it uses less digits than its factorization.

765906930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47211 (or 47208 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 765906930 is about 27675.0235772257. The cubic root of 765906930 is about 914.9387041264.

The spelling of 765906930 in words is "seven hundred sixty-five million, nine hundred six thousand, nine hundred thirty".