76768655 has 16 divisors (see below), whose sum is σ = 95580000. Its totient is φ = 59122560.

The previous prime is 76768649. The next prime is 76768663. The reversal of 76768655 is 55686767.

It is a happy number.

It is not a de Polignac number, because 76768655 - 2²² = 72574351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71825 + ... + 72885.

It is an arithmetic number, because the mean of its divisors is an integer number (5973750).

Almost surely, 2^76768655 is an apocalyptic number.

76768655 is a deficient number, since it is larger than the sum of its proper divisors (18811345).

76768655 is a wasteful number, since it uses less digits than its factorization.

76768655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594.

The product of its digits is 2116800, while the sum is 50.

The square root of 76768655 is about 8761.7723663652. The cubic root of 76768655 is about 425.0055916219.

The spelling of 76768655 in words is "seventy-six million, seven hundred sixty-eight thousand, six hundred fifty-five".