7973123397 has 16 divisors (see below), whose sum is σ = 11174025600. Its totient is φ = 5047192832.

The previous prime is 7973123383. The next prime is 7973123407. The reversal of 7973123397 is 7933213797.

It is a cyclic number.

It is not a de Polignac number, because 7973123397 - 2²⁶ = 7906014533 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7973123357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412272 + ... + 431177.

It is an arithmetic number, because the mean of its divisors is an integer number (698376600).

Almost surely, 2^7973123397 is an apocalyptic number.

It is an amenable number.

7973123397 is a deficient number, since it is larger than the sum of its proper divisors (3200902203).

7973123397 is a wasteful number, since it uses less digits than its factorization.

7973123397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843612.

The product of its digits is 1500282, while the sum is 51.

The square root of 7973123397 is about 89292.3479196286. The cubic root of 7973123397 is about 1997.7577702256.

The spelling of 7973123397 in words is "seven billion, nine hundred seventy-three million, one hundred twenty-three thousand, three hundred ninety-seven".