123079997 has 4 divisors (see below), whose sum is σ = 123333216. Its totient is φ = 122826780.

The previous prime is 123079987. The next prime is 123080003. The reversal of 123079997 is 799970321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799970321 = 59 ⋅13558819.

It is a cyclic number.

It is not a de Polignac number, because 123079997 - 2⁶ = 123079933 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 (123079907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125879 + ... + 126852.

It is an arithmetic number, because the mean of its divisors is an integer number (30833304).

Almost surely, 2^123079997 is an apocalyptic number.

It is an amenable number.

123079997 is a deficient number, since it is larger than the sum of its proper divisors (253219).

123079997 is an equidigital number, since it uses as much as digits as its factorization.

123079997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253218.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 123079997 is about 11094.1424634804. The cubic root of 123079997 is about 497.4267757520.

The spelling of 123079997 in words is "one hundred twenty-three million, seventy-nine thousand, nine hundred ninety-seven".