79081992 has 96 divisors (see below), whose sum is σ = 241263360. Its totient is φ = 23184000.

The previous prime is 79081991. The next prime is 79082039. The reversal of 79081992 is 29918097.

It is a super-2 number, since 2×79081992² = 12507922917376128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79081991) 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 23 ways as a sum of consecutive naturals, for example, 22942 + ... + 26162.

It is an arithmetic number, because the mean of its divisors is an integer number (2513160).

Almost surely, 2^79081992 is an apocalyptic number.

79081992 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 79081992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120631680).

79081992 is an abundant number, since it is smaller than the sum of its proper divisors (162181368).

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

79081992 is a wasteful number, since it uses less digits than its factorization.

79081992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275 (or 3268 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 79081992 is about 8892.8056315203. The cubic root of 79081992 is about 429.2324363505.

The spelling of 79081992 in words is "seventy-nine million, eighty-one thousand, nine hundred ninety-two".