78859794 has 48 divisors (see below), whose sum is σ = 173027232. Its totient is φ = 23946624.

The previous prime is 78859793. The next prime is 78859799. The reversal of 78859794 is 49795887.

It is not an unprimeable number, because it can be changed into a prime (78859793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83694 + ... + 84630.

It is an arithmetic number, because the mean of its divisors is an integer number (3604734).

Almost surely, 2^78859794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78859794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86513616).

78859794 is an abundant number, since it is smaller than the sum of its proper divisors (94167438).

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

78859794 is a wasteful number, since it uses less digits than its factorization.

78859794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1038 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 57.

The square root of 78859794 is about 8880.3037110225. The cubic root of 78859794 is about 428.8300520597.

The spelling of 78859794 in words is "seventy-eight million, eight hundred fifty-nine thousand, seven hundred ninety-four".