79112261 has 8 divisors (see below), whose sum is σ = 81951480. Its totient is φ = 76280512.

The previous prime is 79112227. The next prime is 79112263. The reversal of 79112261 is 16221197.

It can be written as a sum of positive squares in 4 ways, for example, as 9025 + 79103236 = 95^2 + 8894^2 .

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 79112261 - 2¹⁸ = 78850117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79112263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28031 + ... + 30723.

It is an arithmetic number, because the mean of its divisors is an integer number (10243935).

Almost surely, 2^79112261 is an apocalyptic number.

It is an amenable number.

79112261 is a deficient number, since it is larger than the sum of its proper divisors (2839219).

79112261 is a wasteful number, since it uses less digits than its factorization.

79112261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735.

The product of its digits is 1512, while the sum is 29.

The square root of 79112261 is about 8894.5073500447. The cubic root of 79112261 is about 429.2871929350.

The spelling of 79112261 in words is "seventy-nine million, one hundred twelve thousand, two hundred sixty-one".