7923017121 has 8 divisors (see below), whose sum is σ = 10628833440. Its totient is φ = 5249606112.

The previous prime is 7923017087. The next prime is 7923017131. The reversal of 7923017121 is 1217103297.

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

It is not a de Polignac number, because 7923017121 - 2⁷ = 7923016993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7923017131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8100756 + ... + 8101733.

It is an arithmetic number, because the mean of its divisors is an integer number (1328604180).

Almost surely, 2^7923017121 is an apocalyptic number.

It is an amenable number.

7923017121 is a deficient number, since it is larger than the sum of its proper divisors (2705816319).

7923017121 is a wasteful number, since it uses less digits than its factorization.

7923017121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16202655.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 7923017121 is about 89011.3314190952. The cubic root of 7923017121 is about 1993.5640717122.

It can be divided in two parts, 792 and 3017121, that multiplied together give a palindrome (2389559832).

The spelling of 7923017121 in words is "seven billion, nine hundred twenty-three million, seventeen thousand, one hundred twenty-one".