79190089 has 16 divisors (see below), whose sum is σ = 89616384. Its totient is φ = 69325200.

The previous prime is 79190057. The next prime is 79190093. The reversal of 79190089 is 98009197.

It is a cyclic number.

It is not a de Polignac number, because 79190089 - 2⁵ = 79190057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79190009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89242 + ... + 90124.

It is an arithmetic number, because the mean of its divisors is an integer number (5601024).

Almost surely, 2^79190089 is an apocalyptic number.

It is an amenable number.

79190089 is a deficient number, since it is larger than the sum of its proper divisors (10426295).

79190089 is a wasteful number, since it uses less digits than its factorization.

79190089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 79190089 is about 8898.8813341903. The cubic root of 79190089 is about 429.4279195984.

The spelling of 79190089 in words is "seventy-nine million, one hundred ninety thousand, eighty-nine".