16260889 has 2 divisors, whose sum is σ = 16260890. Its totient is φ = 16260888.

The previous prime is 16260883. The next prime is 16260929. The reversal of 16260889 is 98806261.

It is an a-pointer prime, because the next prime (16260929) can be obtained adding 16260889 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16160400 + 100489 = 4020^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 16260889 - 2¹¹ = 16258841 is a prime.

It is a super-2 number, since 2×16260889² = 528833022140642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16260883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8130444 + 8130445.

It is an arithmetic number, because the mean of its divisors is an integer number (8130445).

Almost surely, 2^16260889 is an apocalyptic number.

It is an amenable number.

16260889 is a deficient number, since it is larger than the sum of its proper divisors (1).

16260889 is an equidigital number, since it uses as much as digits as its factorization.

16260889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 16260889 is about 4032.4792621909. The cubic root of 16260889 is about 253.3464141830.

The spelling of 16260889 in words is "sixteen million, two hundred sixty thousand, eight hundred eighty-nine".