16468589 has 4 divisors (see below), whose sum is σ = 16913724. Its totient is φ = 16023456.

The previous prime is 16468583. The next prime is 16468591. The reversal of 16468589 is 98586461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98586461 = 7547 ⋅13063.

It can be written as a sum of positive squares in 2 ways, for example, as 14822500 + 1646089 = 3850^2 + 1283^2 .

It is a cyclic number.

It is not a de Polignac number, because 16468589 - 2¹⁶ = 16403053 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 (16468583) 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, 222512 + ... + 222585.

It is an arithmetic number, because the mean of its divisors is an integer number (4228431).

Almost surely, 2^16468589 is an apocalyptic number.

It is an amenable number.

16468589 is a deficient number, since it is larger than the sum of its proper divisors (445135).

16468589 is an equidigital number, since it uses as much as digits as its factorization.

16468589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445134.

The product of its digits is 414720, while the sum is 47.

The square root of 16468589 is about 4058.1509336150. The cubic root of 16468589 is about 254.4205167600.

The spelling of 16468589 in words is "sixteen million, four hundred sixty-eight thousand, five hundred eighty-nine".