8001017923 has 4 divisors (see below), whose sum is σ = 8002326528. Its totient is φ = 7999709320.

The previous prime is 8001017897. The next prime is 8001017951. The reversal of 8001017923 is 3297101008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8001017923 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8001017723) 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, 645088 + ... + 657373.

It is an arithmetic number, because the mean of its divisors is an integer number (2000581632).

Almost surely, 2^8001017923 is an apocalyptic number.

8001017923 is a deficient number, since it is larger than the sum of its proper divisors (1308605).

8001017923 is a wasteful number, since it uses less digits than its factorization.

8001017923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308604.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 8001017923 is about 89448.4092815518. The cubic root of 8001017923 is about 2000.0848233191.

The spelling of 8001017923 in words is "eight billion, one million, seventeen thousand, nine hundred twenty-three".