79271089 has 4 divisors (see below), whose sum is σ = 79323120. Its totient is φ = 79219060.

The previous prime is 79271063. The next prime is 79271111. The reversal of 79271089 is 98017297.

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 79271089 - 2¹⁵ = 79238321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79271009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23659 + ... + 26800.

It is an arithmetic number, because the mean of its divisors is an integer number (19830780).

Almost surely, 2^79271089 is an apocalyptic number.

It is an amenable number.

79271089 is a deficient number, since it is larger than the sum of its proper divisors (52031).

79271089 is a wasteful number, since it uses less digits than its factorization.

79271089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52030.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 79271089 is about 8903.4313048397. The cubic root of 79271089 is about 429.5742839103.

The spelling of 79271089 in words is "seventy-nine million, two hundred seventy-one thousand, eighty-nine".