76796778 has 16 divisors (see below), whose sum is σ = 156862080. Its totient is φ = 25054176.

The previous prime is 76796771. The next prime is 76796791. The reversal of 76796778 is 87769767.

It is a super-2 number, since 2×76796778² = 11795490222362568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76796771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135883 + ... + 136446.

It is an arithmetic number, because the mean of its divisors is an integer number (9803880).

Almost surely, 2^76796778 is an apocalyptic number.

76796778 is an abundant number, since it is smaller than the sum of its proper divisors (80065302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76796778 is a wasteful number, since it uses less digits than its factorization.

76796778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272381.

The product of its digits is 6223392, while the sum is 57.

The square root of 76796778 is about 8763.3770887712. The cubic root of 76796778 is about 425.0574833435.

The spelling of 76796778 in words is "seventy-six million, seven hundred ninety-six thousand, seven hundred seventy-eight".