18028967 has 8 divisors (see below), whose sum is σ = 20703360. Its totient is φ = 15527160.

The previous prime is 18028951. The next prime is 18028973. The reversal of 18028967 is 76982081.

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

It is not a de Polignac number, because 18028967 - 2⁴ = 18028951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18028667) 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, 42923 + ... + 43340.

It is an arithmetic number, because the mean of its divisors is an integer number (2587920).

Almost surely, 2^18028967 is an apocalyptic number.

18028967 is a deficient number, since it is larger than the sum of its proper divisors (2674393).

18028967 is a wasteful number, since it uses less digits than its factorization.

18028967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86293.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 18028967 is about 4246.0531084762. The cubic root of 18028967 is about 262.2146474386.

The spelling of 18028967 in words is "eighteen million, twenty-eight thousand, nine hundred sixty-seven".