79842742 has 16 divisors (see below), whose sum is σ = 141593760. Its totient is φ = 33038208.

The previous prime is 79842691. The next prime is 79842743. The reversal of 79842742 is 24724897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79842743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97923 + ... + 98734.

It is an arithmetic number, because the mean of its divisors is an integer number (8849610).

Almost surely, 2^79842742 is an apocalyptic number.

79842742 is a deficient number, since it is larger than the sum of its proper divisors (61751018).

79842742 is a wasteful number, since it uses less digits than its factorization.

79842742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196695.

The product of its digits is 225792, while the sum is 43.

The square root of 79842742 is about 8935.4765961307. The cubic root of 79842742 is about 430.6044177310.

The spelling of 79842742 in words is "seventy-nine million, eight hundred forty-two thousand, seven hundred forty-two".