76782668 has 12 divisors (see below), whose sum is σ = 137647272. Its totient is φ = 37454880.

The previous prime is 76782661. The next prime is 76782677. The reversal of 76782668 is 86628767.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (76782661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233930 + ... + 234257.

It is an arithmetic number, because the mean of its divisors is an integer number (11470606).

Almost surely, 2^76782668 is an apocalyptic number.

It is an amenable number.

76782668 is a deficient number, since it is larger than the sum of its proper divisors (60864604).

76782668 is a wasteful number, since it uses less digits than its factorization.

76782668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468232 (or 468230 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 76782668 is about 8762.5719968512. The cubic root of 76782668 is about 425.0314495758.

The spelling of 76782668 in words is "seventy-six million, seven hundred eighty-two thousand, six hundred sixty-eight".