16426589 has 2 divisors, whose sum is σ = 16426590. Its totient is φ = 16426588.

The previous prime is 16426567. The next prime is 16426601. The reversal of 16426589 is 98562461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15288100 + 1138489 = 3910^2 + 1067^2 .

It is a cyclic number.

It is not a de Polignac number, because 16426589 - 2¹⁶ = 16361053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16456589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213294 + 8213295.

It is an arithmetic number, because the mean of its divisors is an integer number (8213295).

Almost surely, 2^16426589 is an apocalyptic number.

It is an amenable number.

16426589 is a deficient number, since it is larger than the sum of its proper divisors (1).

16426589 is an equidigital number, since it uses as much as digits as its factorization.

16426589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 16426589 is about 4052.9728595193. The cubic root of 16426589 is about 254.2040489434.

The spelling of 16426589 in words is "sixteen million, four hundred twenty-six thousand, five hundred eighty-nine".