16890311 has 2 divisors, whose sum is σ = 16890312. Its totient is φ = 16890310.

The previous prime is 16890287. The next prime is 16890317. The reversal of 16890311 is 11309861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16890311 - 2¹⁰ = 16889287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16890317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8445155 + 8445156.

It is an arithmetic number, because the mean of its divisors is an integer number (8445156).

Almost surely, 2^16890311 is an apocalyptic number.

16890311 is a deficient number, since it is larger than the sum of its proper divisors (1).

16890311 is an equidigital number, since it uses as much as digits as its factorization.

16890311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 16890311 is about 4109.7823543346. The cubic root of 16890311 is about 256.5739431938.

The spelling of 16890311 in words is "sixteen million, eight hundred ninety thousand, three hundred eleven".