79550123 has 16 divisors (see below), whose sum is σ = 90740736. Its totient is φ = 69294720.

The previous prime is 79550099. The next prime is 79550137. The reversal of 79550123 is 32105597.

It is not a de Polignac number, because 79550123 - 2¹⁸ = 79287979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79550123.

It is not an unprimeable number, because it can be changed into a prime (79550323) 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 15 ways as a sum of consecutive naturals, for example, 8840 + ... + 15402.

It is an arithmetic number, because the mean of its divisors is an integer number (5671296).

Almost surely, 2^79550123 is an apocalyptic number.

79550123 is a deficient number, since it is larger than the sum of its proper divisors (11190613).

79550123 is a wasteful number, since it uses less digits than its factorization.

79550123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 79550123 is about 8919.0875654408. The cubic root of 79550123 is about 430.0777270705.

The spelling of 79550123 in words is "seventy-nine million, five hundred fifty thousand, one hundred twenty-three".