79925863 has 4 divisors (see below), whose sum is σ = 81784648. Its totient is φ = 78067080.

The previous prime is 79925849. The next prime is 79925869. The reversal of 79925863 is 36852997.

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 79925863 - 2⁵ = 79925831 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 (79925869) 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, 929328 + ... + 929413.

It is an arithmetic number, because the mean of its divisors is an integer number (20446162).

Almost surely, 2^79925863 is an apocalyptic number.

79925863 is a deficient number, since it is larger than the sum of its proper divisors (1858785).

79925863 is a wasteful number, since it uses less digits than its factorization.

79925863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858784.

The product of its digits is 816480, while the sum is 49.

The square root of 79925863 is about 8940.1265650996. The cubic root of 79925863 is about 430.7537940987.

It can be divided in two parts, 799 and 25863, that added together give a palindrome (26662).

The spelling of 79925863 in words is "seventy-nine million, nine hundred twenty-five thousand, eight hundred sixty-three".