775864832 has 30 divisors (see below), whose sum is σ = 1551474639. Its totient is φ = 387617280.

The previous prime is 775864787. The next prime is 775864847. The reversal of 775864832 is 238468577.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 387932416 + 387932416 = 19696^2 + 19696^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19696.

It is a super-3 number, since 3×775864832³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 629657 + ... + 630887.

Almost surely, 2^775864832 is an apocalyptic number.

It is an amenable number.

775864832 is a deficient number, since it is larger than the sum of its proper divisors (775609807).

775864832 is an frugal number, since it uses more digits than its factorization.

775864832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480 (or 1233 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The square root of 775864832 is about 27854.3503245005. The cubic root of 775864832 is about 918.8868199712.

Multiplying 775864832 by its sum of digits (50), we get a square (38793241600 = 196960²).

The spelling of 775864832 in words is "seven hundred seventy-five million, eight hundred sixty-four thousand, eight hundred thirty-two".