79616925 has 30 divisors (see below), whose sum is σ = 147481818. Its totient is φ = 42461280.

The previous prime is 79616923. The next prime is 79616981. The reversal of 79616925 is 52961697.

It is a happy number.

79616925 is a `hidden beast` number, since 7 + 9 + 616 + 9 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 14152644 + 65464281 = 3762^2 + 8091^2 .

It is not a de Polignac number, because 79616925 - 2¹ = 79616923 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79616923) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 17634 + ... + 21683.

Almost surely, 2^79616925 is an apocalyptic number.

79616925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

79616925 is a deficient number, since it is larger than the sum of its proper divisors (67864893).

79616925 is a wasteful number, since it uses less digits than its factorization.

79616925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39339 (or 39325 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 79616925 is about 8922.8316693749. The cubic root of 79616925 is about 430.1980789233.

It can be divided in two parts, 7961692 and 5, that added together give a palindrome (7961697).

The spelling of 79616925 in words is "seventy-nine million, six hundred sixteen thousand, nine hundred twenty-five".