79724122 has 8 divisors (see below), whose sum is σ = 122818356. Its totient is φ = 38784672.

The previous prime is 79724119. The next prime is 79724147. The reversal of 79724122 is 22142797.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79548561 + 175561 = 8919^2 + 419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 538603 + ... + 538750.

Almost surely, 2^79724122 is an apocalyptic number.

79724122 is a deficient number, since it is larger than the sum of its proper divisors (43094234).

79724122 is a wasteful number, since it uses less digits than its factorization.

79724122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077392.

The product of its digits is 14112, while the sum is 34.

The square root of 79724122 is about 8928.8365423497. The cubic root of 79724122 is about 430.3910666243.

It can be divided in two parts, 79 and 724122, that added together give a square (724201 = 851²).

The spelling of 79724122 in words is "seventy-nine million, seven hundred twenty-four thousand, one hundred twenty-two".