79487423 has 4 divisors (see below), whose sum is σ = 79686048. Its totient is φ = 79288800.

The previous prime is 79487399. The next prime is 79487449. The reversal of 79487423 is 32478497.

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 79487423 - 2¹⁰ = 79486399 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 (79487323) 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 3 ways as a sum of consecutive naturals, for example, 98711 + ... + 99512.

It is an arithmetic number, because the mean of its divisors is an integer number (19921512).

Almost surely, 2^79487423 is an apocalyptic number.

79487423 is a deficient number, since it is larger than the sum of its proper divisors (198625).

79487423 is a wasteful number, since it uses less digits than its factorization.

79487423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198624.

The product of its digits is 338688, while the sum is 44.

The square root of 79487423 is about 8915.5719390289. The cubic root of 79487423 is about 429.9647041517.

The spelling of 79487423 in words is "seventy-nine million, four hundred eighty-seven thousand, four hundred twenty-three".