79125489 has 6 divisors (see below), whose sum is σ = 114292386. Its totient is φ = 52750320.

The previous prime is 79125439. The next prime is 79125493. The reversal of 79125489 is 98452197.

It can be written as a sum of positive squares in only one way, i.e., 43125489 + 36000000 = 6567^2 + 6000^2 .

It is not a de Polignac number, because 79125489 - 2⁹ = 79124977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79125439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4395852 + ... + 4395869.

It is an arithmetic number, because the mean of its divisors is an integer number (19048731).

Almost surely, 2^79125489 is an apocalyptic number.

It is an amenable number.

79125489 is a deficient number, since it is larger than the sum of its proper divisors (35166897).

79125489 is a wasteful number, since it uses less digits than its factorization.

79125489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8791727 (or 8791724 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 79125489 is about 8895.2509239481. The cubic root of 79125489 is about 429.3111179855.

The spelling of 79125489 in words is "seventy-nine million, one hundred twenty-five thousand, four hundred eighty-nine".