79787002 has 4 divisors (see below), whose sum is σ = 119680506. Its totient is φ = 39893500.

The previous prime is 79786999. The next prime is 79787021. The reversal of 79787002 is 20078797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20078797 = 337 ⋅59581.

It can be written as a sum of positive squares in only one way, i.e., 76405081 + 3381921 = 8741^2 + 1839^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19946749 + ... + 19946752.

Almost surely, 2^79787002 is an apocalyptic number.

79787002 is a deficient number, since it is larger than the sum of its proper divisors (39893504).

79787002 is a wasteful number, since it uses less digits than its factorization.

79787002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39893503.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 79787002 is about 8932.3570237648. The cubic root of 79787002 is about 430.5041895523.

The spelling of 79787002 in words is "seventy-nine million, seven hundred eighty-seven thousand, two".