79206889 has 4 divisors (see below), whose sum is σ = 79487056. Its totient is φ = 78926724.

The previous prime is 79206887. The next prime is 79206929. The reversal of 79206889 is 98860297.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79206889 - 2¹ = 79206887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79206887) 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, 139659 + ... + 140224.

It is an arithmetic number, because the mean of its divisors is an integer number (19871764).

Almost surely, 2^79206889 is an apocalyptic number.

It is an amenable number.

79206889 is a deficient number, since it is larger than the sum of its proper divisors (280167).

79206889 is a wasteful number, since it uses less digits than its factorization.

79206889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280166.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 79206889 is about 8899.8252230030. The cubic root of 79206889 is about 429.4582848416.

The spelling of 79206889 in words is "seventy-nine million, two hundred six thousand, eight hundred eighty-nine".