8023999 has 2 divisors, whose sum is σ = 8024000. Its totient is φ = 8023998.

The previous prime is 8023993. The next prime is 8024047. The reversal of 8023999 is 9993208.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8023999 - 2³ = 8023991 is a prime.

8023999 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8023991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4011999 + 4012000.

It is an arithmetic number, because the mean of its divisors is an integer number (4012000).

Almost surely, 2^8023999 is an apocalyptic number.

8023999 is a deficient number, since it is larger than the sum of its proper divisors (1).

8023999 is an equidigital number, since it uses as much as digits as its factorization.

8023999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 8023999 is about 2832.6664117047. Note that the first 3 decimals coincide. The cubic root of 8023999 is about 200.1997920160.

The spelling of 8023999 in words is "eight million, twenty-three thousand, nine hundred ninety-nine".