78977088 has 84 divisors (see below), whose sum is σ = 233728768. Its totient is φ = 25470720.

The previous prime is 78977071. The next prime is 78977113. The reversal of 78977088 is 88077987.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15645 + ... + 20067.

Almost surely, 2^78977088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78977088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116864384).

78977088 is an abundant number, since it is smaller than the sum of its proper divisors (154751680).

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

78977088 is a wasteful number, since it uses less digits than its factorization.

78977088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472 (or 4459 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 54.

The square root of 78977088 is about 8886.9054231493. The cubic root of 78977088 is about 429.0425569466.

It can be divided in two parts, 789 and 77088, that added together give a palindrome (77877).

The spelling of 78977088 in words is "seventy-eight million, nine hundred seventy-seven thousand, eighty-eight".