79718125 has 10 divisors (see below), whose sum is σ = 99616550. Its totient is φ = 63774000.

The previous prime is 79718113. The next prime is 79718137. The reversal of 79718125 is 52181797.

It is an interprime number because it is at equal distance from previous prime (79718113) and next prime (79718137).

It can be written as a sum of positive squares in 5 ways, for example, as 7502121 + 72216004 = 2739^2 + 8498^2 .

It is not a de Polignac number, because 79718125 - 2²⁵ = 46163693 is a prime.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 63150 + ... + 64399.

It is an arithmetic number, because the mean of its divisors is an integer number (9961655).

Almost surely, 2^79718125 is an apocalyptic number.

It is an amenable number.

79718125 is a deficient number, since it is larger than the sum of its proper divisors (19898425).

79718125 is an equidigital number, since it uses as much as digits as its factorization.

79718125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127569 (or 127554 counting only the distinct ones).

The product of its digits is 35280, while the sum is 40.

The square root of 79718125 is about 8928.5007140057. The cubic root of 79718125 is about 430.3802747423.

The spelling of 79718125 in words is "seventy-nine million, seven hundred eighteen thousand, one hundred twenty-five".