76778834 has 32 divisors (see below), whose sum is σ = 137635200. Its totient is φ = 31709440.

The previous prime is 76778831. The next prime is 76778869. The reversal of 76778834 is 43887767.

It is not an unprimeable number, because it can be changed into a prime (76778831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7307 + ... + 14385.

It is an arithmetic number, because the mean of its divisors is an integer number (4301100).

Almost surely, 2^76778834 is an apocalyptic number.

76778834 is a deficient number, since it is larger than the sum of its proper divisors (60856366).

76778834 is a wasteful number, since it uses less digits than its factorization.

76778834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7138.

The product of its digits is 1580544, while the sum is 50.

The square root of 76778834 is about 8762.3532227365. The cubic root of 76778834 is about 425.0243750726.

The spelling of 76778834 in words is "seventy-six million, seven hundred seventy-eight thousand, eight hundred thirty-four".