78808488 has 64 divisors (see below), whose sum is σ = 224294400. Its totient is φ = 22841280.

The previous prime is 78808459. The next prime is 78808489. The reversal of 78808488 is 88480887.

It is a super-2 number, since 2×78808488² = 12421555561692288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78808488.

It is not an unprimeable number, because it can be changed into a prime (78808489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (3504600).

Almost surely, 2^78808488 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 78808488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112147200).

78808488 is an abundant number, since it is smaller than the sum of its proper divisors (145485912).

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

78808488 is a wasteful number, since it uses less digits than its factorization.

78808488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13022 (or 13018 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 51.

The square root of 78808488 is about 8877.4144884645. The cubic root of 78808488 is about 428.7370332701.

The spelling of 78808488 in words is "seventy-eight million, eight hundred eight thousand, four hundred eighty-eight".