7923880321 has 8 divisors (see below), whose sum is σ = 9058008960. Its totient is φ = 6790288128.

The previous prime is 7923880313. The next prime is 7923880343. The reversal of 7923880321 is 1230883297.

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

It is a cyclic number.

It is not a de Polignac number, because 7923880321 - 2³ = 7923880313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7923880301) 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, 101941 + ... + 161986.

It is an arithmetic number, because the mean of its divisors is an integer number (1132251120).

Almost surely, 2^7923880321 is an apocalyptic number.

It is an amenable number.

7923880321 is a deficient number, since it is larger than the sum of its proper divisors (1134128639).

7923880321 is a wasteful number, since it uses less digits than its factorization.

7923880321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268223.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 7923880321 is about 89016.1801078883. The cubic root of 7923880321 is about 1993.6364676185.

The spelling of 7923880321 in words is "seven billion, nine hundred twenty-three million, eight hundred eighty thousand, three hundred twenty-one".