79207643 has 4 divisors (see below), whose sum is σ = 80892960. Its totient is φ = 77522328.

The previous prime is 79207627. The next prime is 79207649. The reversal of 79207643 is 34670297.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79207643 - 2⁴ = 79207627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79207597 and 79207606.

It is not an unprimeable number, because it can be changed into a prime (79207649) 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, 842588 + ... + 842681.

It is an arithmetic number, because the mean of its divisors is an integer number (20223240).

Almost surely, 2^79207643 is an apocalyptic number.

79207643 is a deficient number, since it is larger than the sum of its proper divisors (1685317).

79207643 is a wasteful number, since it uses less digits than its factorization.

79207643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685316.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 79207643 is about 8899.8675832846. The cubic root of 79207643 is about 429.4596475619.

The spelling of 79207643 in words is "seventy-nine million, two hundred seven thousand, six hundred forty-three".