16845889 has 4 divisors (see below), whose sum is σ = 16870960. Its totient is φ = 16820820.

The previous prime is 16845883. The next prime is 16845911. The reversal of 16845889 is 98854861.

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.

It is a cyclic number.

It is not a de Polignac number, because 16845889 - 2¹³ = 16837697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16845883) 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, 11499 + ... + 12880.

It is an arithmetic number, because the mean of its divisors is an integer number (4217740).

Almost surely, 2^16845889 is an apocalyptic number.

It is an amenable number.

16845889 is a deficient number, since it is larger than the sum of its proper divisors (25071).

16845889 is an equidigital number, since it uses as much as digits as its factorization.

16845889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25070.

The product of its digits is 552960, while the sum is 49.

The square root of 16845889 is about 4104.3743737627. The cubic root of 16845889 is about 256.3488134479.

The spelling of 16845889 in words is "sixteen million, eight hundred forty-five thousand, eight hundred eighty-nine".