79787042 has 8 divisors (see below), whose sum is σ = 125979600. Its totient is φ = 37793844.

The previous prime is 79787027. The next prime is 79787047. The reversal of 79787042 is 24078797.

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

It is a super-2 number, since 2×79787042² = 12731944142219528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79786984 and 79787002.

It is not an unprimeable number, because it can be changed into a prime (79787047) 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, 1049792 + ... + 1049867.

It is an arithmetic number, because the mean of its divisors is an integer number (15747450).

Almost surely, 2^79787042 is an apocalyptic number.

79787042 is a deficient number, since it is larger than the sum of its proper divisors (46192558).

79787042 is a wasteful number, since it uses less digits than its factorization.

79787042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099680.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 79787042 is about 8932.3592628152. The cubic root of 79787042 is about 430.5042614945.

The spelling of 79787042 in words is "seventy-nine million, seven hundred eighty-seven thousand, forty-two".