79685253 has 6 divisors (see below), whose sum is σ = 115100934. Its totient is φ = 53123496.

The previous prime is 79685237. The next prime is 79685269. The reversal of 79685253 is 35258697.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (79685237) and next prime (79685269).

It can be written as a sum of positive squares in only one way, i.e., 45603009 + 34082244 = 6753^2 + 5838^2 .

It is not a de Polignac number, because 79685253 - 2⁴ = 79685237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79685199 and 79685208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79687253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4426950 + ... + 4426967.

It is an arithmetic number, because the mean of its divisors is an integer number (19183489).

Almost surely, 2^79685253 is an apocalyptic number.

It is an amenable number.

79685253 is a deficient number, since it is larger than the sum of its proper divisors (35415681).

79685253 is a wasteful number, since it uses less digits than its factorization.

79685253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8853923 (or 8853920 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 79685253 is about 8926.6596776174. The cubic root of 79685253 is about 430.3211104246.

The spelling of 79685253 in words is "seventy-nine million, six hundred eighty-five thousand, two hundred fifty-three".