79520263 has 4 divisors (see below), whose sum is σ = 83705560. Its totient is φ = 75334968.

The previous prime is 79520261. The next prime is 79520281. The reversal of 79520263 is 36202597.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79520263 - 2¹ = 79520261 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 (79520261) 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 3 ways as a sum of consecutive naturals, for example, 2092620 + ... + 2092657.

It is an arithmetic number, because the mean of its divisors is an integer number (20926390).

Almost surely, 2^79520263 is an apocalyptic number.

79520263 is a deficient number, since it is larger than the sum of its proper divisors (4185297).

79520263 is a wasteful number, since it uses less digits than its factorization.

79520263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185296.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 79520263 is about 8917.4134702839. The cubic root of 79520263 is about 430.0239088923.

The spelling of 79520263 in words is "seventy-nine million, five hundred twenty thousand, two hundred sixty-three".