79331089 has 8 divisors (see below), whose sum is σ = 81855360. Its totient is φ = 76844976.

The previous prime is 79331081. The next prime is 79331093. The reversal of 79331089 is 98013397.

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

It is a cyclic number.

It is not a de Polignac number, because 79331089 - 2³ = 79331081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79331081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5287 + ... + 13660.

It is an arithmetic number, because the mean of its divisors is an integer number (10231920).

Almost surely, 2^79331089 is an apocalyptic number.

79331089 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

79331089 is a deficient number, since it is larger than the sum of its proper divisors (2524271).

79331089 is a wasteful number, since it uses less digits than its factorization.

79331089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19079.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 79331089 is about 8906.8001549378. The cubic root of 79331089 is about 429.6826376503.

The spelling of 79331089 in words is "seventy-nine million, three hundred thirty-one thousand, eighty-nine".