7998023 has 8 divisors (see below), whose sum is σ = 8760576. Its totient is φ = 7241400.

The previous prime is 7998019. The next prime is 7998047. The reversal of 7998023 is 3208997.

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 7998023 - 2² = 7998019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640 + ... + 4322.

It is an arithmetic number, because the mean of its divisors is an integer number (1095072).

Almost surely, 2^7998023 is an apocalyptic number.

7998023 is a deficient number, since it is larger than the sum of its proper divisors (762553).

7998023 is a wasteful number, since it uses less digits than its factorization.

7998023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 7998023 is about 2828.0776156251. The cubic root of 7998023 is about 199.9835236427.

The spelling of 7998023 in words is "seven million, nine hundred ninety-eight thousand, twenty-three".