79696251 has 16 divisors (see below), whose sum is σ = 120949920. Its totient is φ = 51834240.

The previous prime is 79696249. The next prime is 79696271. The reversal of 79696251 is 15269697.

It is a happy number.

It is not a de Polignac number, because 79696251 - 2¹ = 79696249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79696197 and 79696206.

It is not an unprimeable number, because it can be changed into a prime (79696271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34890 + ... + 37103.

It is an arithmetic number, because the mean of its divisors is an integer number (7559370).

Almost surely, 2^79696251 is an apocalyptic number.

79696251 is a deficient number, since it is larger than the sum of its proper divisors (41253669).

79696251 is a wasteful number, since it uses less digits than its factorization.

79696251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72043 (or 72037 counting only the distinct ones).

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

The square root of 79696251 is about 8927.2756762632. The cubic root of 79696251 is about 430.3409068682.

The spelling of 79696251 in words is "seventy-nine million, six hundred ninety-six thousand, two hundred fifty-one".