76780832 has 18 divisors (see below), whose sum is σ = 151259913. Its totient is φ = 38365632.

The previous prime is 76780829. The next prime is 76780849. The reversal of 76780832 is 23808767.

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 2 ways, for example, as 74718736 + 2062096 = 8644^2 + 1436^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6196.

It is a super-2 number, since 2×76780832² = 11790592325224448, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76780832.

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, 48794 + ... + 50342.

Almost surely, 2^76780832 is an apocalyptic number.

It is an amenable number.

76780832 is a deficient number, since it is larger than the sum of its proper divisors (74479081).

76780832 is an frugal number, since it uses more digits than its factorization.

76780832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 76780832 is about 8762.4672324637. The cubic root of 76780832 is about 425.0280618149.

The spelling of 76780832 in words is "seventy-six million, seven hundred eighty thousand, eight hundred thirty-two".