79810123 has 8 divisors (see below), whose sum is σ = 80822448. Its totient is φ = 78802944.

The previous prime is 79810109. The next prime is 79810141. The reversal of 79810123 is 32101897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79810123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79814123) 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 7 ways as a sum of consecutive naturals, for example, 36715 + ... + 38827.

It is an arithmetic number, because the mean of its divisors is an integer number (10102806).

Almost surely, 2^79810123 is an apocalyptic number.

79810123 is a deficient number, since it is larger than the sum of its proper divisors (1012325).

79810123 is a wasteful number, since it uses less digits than its factorization.

79810123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 79810123 is about 8933.6511572817. The cubic root of 79810123 is about 430.5457699509.

The spelling of 79810123 in words is "seventy-nine million, eight hundred ten thousand, one hundred twenty-three".