8077593921 has 4 divisors (see below), whose sum is σ = 10770125232. Its totient is φ = 5385062612.

The previous prime is 8077593907. The next prime is 8077593941. The reversal of 8077593921 is 1293957708.

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.

It is a cyclic number.

It is not a de Polignac number, because 8077593921 - 2⁶ = 8077593857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8077593941) 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, 1346265651 + ... + 1346265656.

It is an arithmetic number, because the mean of its divisors is an integer number (2692531308).

Almost surely, 2^8077593921 is an apocalyptic number.

It is an amenable number.

8077593921 is a deficient number, since it is larger than the sum of its proper divisors (2692531311).

8077593921 is a wasteful number, since it uses less digits than its factorization.

8077593921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692531310.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 8077593921 is about 89875.4355816983. The cubic root of 8077593921 is about 2006.4453663962.

The spelling of 8077593921 in words is "eight billion, seventy-seven million, five hundred ninety-three thousand, nine hundred twenty-one".