76778268 has 24 divisors (see below), whose sum is σ = 204742272. Its totient is φ = 21936624.

The previous prime is 76778257. The next prime is 76778287. The reversal of 76778268 is 86287767.

It is a self number, because there is not a number n which added to its sum of digits gives 76778268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456930 + ... + 457097.

It is an arithmetic number, because the mean of its divisors is an integer number (8530928).

Almost surely, 2^76778268 is an apocalyptic number.

It is an amenable number.

76778268 is an abundant number, since it is smaller than the sum of its proper divisors (127964004).

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

76778268 is a wasteful number, since it uses less digits than its factorization.

76778268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914041 (or 914039 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 51.

The square root of 76778268 is about 8762.3209254170. The cubic root of 76778268 is about 425.0233306685.

The spelling of 76778268 in words is "seventy-six million, seven hundred seventy-eight thousand, two hundred sixty-eight".