80769792 has 72 divisors (see below), whose sum is σ = 216336960. Its totient is φ = 26752000.

The previous prime is 80769791. The next prime is 80769833. The reversal of 80769792 is 29796708.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (80769791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192559 + ... + 192977.

It is an arithmetic number, because the mean of its divisors is an integer number (3004680).

Almost surely, 2^80769792 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 80769792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108168480).

80769792 is an abundant number, since it is smaller than the sum of its proper divisors (135567168).

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

80769792 is a wasteful number, since it uses less digits than its factorization.

80769792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 80769792 is about 8987.2015666725. The cubic root of 80769792 is about 432.2645841465.

The spelling of 80769792 in words is "eighty million, seven hundred sixty-nine thousand, seven hundred ninety-two".