79388101 has 8 divisors (see below), whose sum is σ = 85753304. Its totient is φ = 73059840.

The previous prime is 79388093. The next prime is 79388129. The reversal of 79388101 is 10188397.

It is a Cunningham number, because it is equal to 8910²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 79388100 = 1^2 + 8910^2 .

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 79388101 - 2³ = 79388093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79388131) 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, 4680 + ... + 13441.

It is an arithmetic number, because the mean of its divisors is an integer number (10719163).

Almost surely, 2^79388101 is an apocalyptic number.

It is an amenable number.

79388101 is a deficient number, since it is larger than the sum of its proper divisors (6365203).

79388101 is a wasteful number, since it uses less digits than its factorization.

79388101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18471.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 79388101 is about 8910.0000561167. Note that the first 4 decimals coincide. The cubic root of 79388101 is about 429.7855447655.

The spelling of 79388101 in words is "seventy-nine million, three hundred eighty-eight thousand, one hundred one".