79549847 has 8 divisors (see below), whose sum is σ = 89394144. Its totient is φ = 70237728.

The previous prime is 79549843. The next prime is 79549901. The reversal of 79549847 is 74894597.

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 79549847 - 2² = 79549843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79549843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132728 + ... + 133325.

It is an arithmetic number, because the mean of its divisors is an integer number (11174268).

Almost surely, 2^79549847 is an apocalyptic number.

79549847 is a deficient number, since it is larger than the sum of its proper divisors (9844297).

79549847 is a wasteful number, since it uses less digits than its factorization.

79549847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266089.

The product of its digits is 2540160, while the sum is 53.

The square root of 79549847 is about 8919.0720929926. The cubic root of 79549847 is about 430.0772296835.

The spelling of 79549847 in words is "seventy-nine million, five hundred forty-nine thousand, eight hundred forty-seven".