78831792 has 100 divisors (see below), whose sum is σ = 245765520. Its totient is φ = 24250752.

The previous prime is 78831757. The next prime is 78831799. The reversal of 78831792 is 29713887.

It is not an unprimeable number, because it can be changed into a prime (78831799) 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 19 ways as a sum of consecutive naturals, for example, 14509 + ... + 19187.

Almost surely, 2^78831792 is an apocalyptic number.

78831792 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78831792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122882760).

78831792 is an abundant number, since it is smaller than the sum of its proper divisors (166933728).

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

78831792 is a wasteful number, since it uses less digits than its factorization.

78831792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712 (or 4697 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 78831792 is about 8878.7269357718. The cubic root of 78831792 is about 428.7792888842.

The spelling of 78831792 in words is "seventy-eight million, eight hundred thirty-one thousand, seven hundred ninety-two".