78737676 has 48 divisors (see below), whose sum is σ = 196368480. Its totient is φ = 24468480.

The previous prime is 78737657. The next prime is 78737699. The reversal of 78737676 is 67673787.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 20466 + ... + 24006.

It is an arithmetic number, because the mean of its divisors is an integer number (4091010).

Almost surely, 2^78737676 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 78737676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98184240).

78737676 is an abundant number, since it is smaller than the sum of its proper divisors (117630804).

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

78737676 is a wasteful number, since it uses less digits than its factorization.

78737676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674 (or 3672 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 51.

The square root of 78737676 is about 8873.4252687449. The cubic root of 78737676 is about 428.6085833820.

The spelling of 78737676 in words is "seventy-eight million, seven hundred thirty-seven thousand, six hundred seventy-six".