78079123 has 4 divisors (see below), whose sum is σ = 79552368. Its totient is φ = 76605880.

The previous prime is 78079117. The next prime is 78079163. The reversal of 78079123 is 32197087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32197087 = 13 ⋅2476699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78079123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78079103) 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, 736543 + ... + 736648.

It is an arithmetic number, because the mean of its divisors is an integer number (19888092).

Almost surely, 2^78079123 is an apocalyptic number.

78079123 is a deficient number, since it is larger than the sum of its proper divisors (1473245).

78079123 is a wasteful number, since it uses less digits than its factorization.

78079123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473244.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 78079123 is about 8836.2391887047. The cubic root of 78079123 is about 427.4102918135.

The spelling of 78079123 in words is "seventy-eight million, seventy-nine thousand, one hundred twenty-three".