16930889 has 2 divisors, whose sum is σ = 16930890. Its totient is φ = 16930888.

The previous prime is 16930883. The next prime is 16930897. The reversal of 16930889 is 98803961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16875664 + 55225 = 4108^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 16930889 - 2⁸ = 16930633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16930883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8465444 + 8465445.

It is an arithmetic number, because the mean of its divisors is an integer number (8465445).

Almost surely, 2^16930889 is an apocalyptic number.

It is an amenable number.

16930889 is a deficient number, since it is larger than the sum of its proper divisors (1).

16930889 is an equidigital number, since it uses as much as digits as its factorization.

16930889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 16930889 is about 4114.7161505990. The cubic root of 16930889 is about 256.7792469149.

The spelling of 16930889 in words is "sixteen million, nine hundred thirty thousand, eight hundred eighty-nine".