79487251 has 8 divisors (see below), whose sum is σ = 80561520. Its totient is φ = 78419712.

The previous prime is 79487237. The next prime is 79487297. The reversal of 79487251 is 15278497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79487251 - 2²⁵ = 45932819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79487198 and 79487207.

It is not an unprimeable number, because it can be changed into a prime (79481251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24820 + ... + 27838.

It is an arithmetic number, because the mean of its divisors is an integer number (10070190).

Almost surely, 2^79487251 is an apocalyptic number.

79487251 is a deficient number, since it is larger than the sum of its proper divisors (1074269).

79487251 is a wasteful number, since it uses less digits than its factorization.

79487251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365.

The product of its digits is 141120, while the sum is 43.

The square root of 79487251 is about 8915.5622929796. The cubic root of 79487251 is about 429.9643940231.

The spelling of 79487251 in words is "seventy-nine million, four hundred eighty-seven thousand, two hundred fifty-one".