79869742 has 8 divisors (see below), whose sum is σ = 119905632. Its totient is φ = 39901200.

The previous prime is 79869739. The next prime is 79869743. The reversal of 79869742 is 24796897.

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

It is a self number, because there is not a number n which added to its sum of digits gives 79869742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79869743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13759 + ... + 18682.

It is an arithmetic number, because the mean of its divisors is an integer number (14988204).

Almost surely, 2^79869742 is an apocalyptic number.

79869742 is a deficient number, since it is larger than the sum of its proper divisors (40035890).

79869742 is a wasteful number, since it uses less digits than its factorization.

79869742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33674.

The product of its digits is 1524096, while the sum is 52.

The square root of 79869742 is about 8936.9872999798. The cubic root of 79869742 is about 430.6529506708.

The spelling of 79869742 in words is "seventy-nine million, eight hundred sixty-nine thousand, seven hundred forty-two".