78848680 has 64 divisors (see below), whose sum is σ = 185619600. Its totient is φ = 30105600.

The previous prime is 78848647. The next prime is 78848701. The reversal of 78848680 is 8684887.

It can be written as a sum of positive squares in 8 ways, for example, as 50779876 + 28068804 = 7126^2 + 5298^2 .

It is a super-2 number, since 2×78848680² = 12434228675484800, which contains 22 as substring.

It is an unprimeable number.

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, 116824 + ... + 117496.

Almost surely, 2^78848680 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 78848680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92809800).

78848680 is an abundant number, since it is smaller than the sum of its proper divisors (106770920).

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

78848680 is a wasteful number, since it uses less digits than its factorization.

78848680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 78848680 is about 8879.6779220870. The cubic root of 78848680 is about 428.8099055826.

The spelling of 78848680 in words is "seventy-eight million, eight hundred forty-eight thousand, six hundred eighty".