79849251 has 6 divisors (see below), whose sum is σ = 115337820. Its totient is φ = 53232828.

The previous prime is 79849247. The next prime is 79849277. The reversal of 79849251 is 15294897.

It is not a de Polignac number, because 79849251 - 2² = 79849247 is a prime.

It is a super-3 number, since 3×79849251³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 79849197 and 79849206.

It is not an unprimeable number, because it can be changed into a prime (79849201) 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, 4436061 + ... + 4436078.

It is an arithmetic number, because the mean of its divisors is an integer number (19222970).

Almost surely, 2^79849251 is an apocalyptic number.

79849251 is a deficient number, since it is larger than the sum of its proper divisors (35488569).

79849251 is a wasteful number, since it uses less digits than its factorization.

79849251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8872145 (or 8872142 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 79849251 is about 8935.8408110261. The cubic root of 79849251 is about 430.6161187653.

The spelling of 79849251 in words is "seventy-nine million, eight hundred forty-nine thousand, two hundred fifty-one".