18034889 has 4 divisors (see below), whose sum is σ = 18177024. Its totient is φ = 17892756.

The previous prime is 18034879. The next prime is 18034927. The reversal of 18034889 is 98843081.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98843081 = 853 ⋅115877.

It is a cyclic number.

It is not a de Polignac number, because 18034889 - 2⁸ = 18034633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18034879) 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, 70877 + ... + 71130.

It is an arithmetic number, because the mean of its divisors is an integer number (4544256).

Almost surely, 2^18034889 is an apocalyptic number.

It is an amenable number.

18034889 is a deficient number, since it is larger than the sum of its proper divisors (142135).

18034889 is a wasteful number, since it uses less digits than its factorization.

18034889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142134.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 18034889 is about 4246.7504047212. The cubic root of 18034889 is about 262.2433542996.

The spelling of 18034889 in words is "eighteen million, thirty-four thousand, eight hundred eighty-nine".