79272161 has 8 divisors (see below), whose sum is σ = 84084000. Its totient is φ = 74524320.

The previous prime is 79272157. The next prime is 79272163. The reversal of 79272161 is 16127297.

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 79272161 - 2² = 79272157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79272163) 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, 13436 + ... + 18413.

It is an arithmetic number, because the mean of its divisors is an integer number (10510500).

Almost surely, 2^79272161 is an apocalyptic number.

It is an amenable number.

79272161 is a deficient number, since it is larger than the sum of its proper divisors (4811839).

79272161 is a wasteful number, since it uses less digits than its factorization.

79272161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31999.

The product of its digits is 10584, while the sum is 35.

The square root of 79272161 is about 8903.4915061452. The cubic root of 79272161 is about 429.5762203101.

The spelling of 79272161 in words is "seventy-nine million, two hundred seventy-two thousand, one hundred sixty-one".