79729792 has 16 divisors (see below), whose sum is σ = 158836950. Its totient is φ = 39864832.

The previous prime is 79729759. The next prime is 79729801. The reversal of 79729792 is 29792797.

It can be written as a sum of positive squares in only one way, i.e., 74235456 + 5494336 = 8616^2 + 2344^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311317 + ... + 311572.

Almost surely, 2^79729792 is an apocalyptic number.

It is an amenable number.

79729792 is a deficient number, since it is larger than the sum of its proper divisors (79107158).

79729792 is an equidigital number, since it uses as much as digits as its factorization.

79729792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622903 (or 622891 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 52.

The square root of 79729792 is about 8929.1540472768. The cubic root of 79729792 is about 430.4012695567.

The spelling of 79729792 in words is "seventy-nine million, seven hundred twenty-nine thousand, seven hundred ninety-two".