79842625 has 16 divisors (see below), whose sum is σ = 105507792. Its totient is φ = 60115200.

The previous prime is 79842583. The next prime is 79842629. The reversal of 79842625 is 52624897.

It can be written as a sum of positive squares in 8 ways, for example, as 1979649 + 77862976 = 1407^2 + 8824^2 .

It is not a de Polignac number, because 79842625 - 2¹¹ = 79840577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79842629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16662 + ... + 20911.

It is an arithmetic number, because the mean of its divisors is an integer number (6594237).

Almost surely, 2^79842625 is an apocalyptic number.

It is an amenable number.

79842625 is a deficient number, since it is larger than the sum of its proper divisors (25665167).

79842625 is a wasteful number, since it uses less digits than its factorization.

79842625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37605 (or 37595 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 79842625 is about 8935.4700491916. The cubic root of 79842625 is about 430.6042073978.

It can be divided in two parts, 7984 and 2625, that added together give a square (10609 = 103²).

The spelling of 79842625 in words is "seventy-nine million, eight hundred forty-two thousand, six hundred twenty-five".