16891022 has 8 divisors (see below), whose sum is σ = 25752072. Its totient is φ = 8307000.

The previous prime is 16891003. The next prime is 16891031. The reversal of 16891022 is 22019861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69104 + ... + 69347.

It is an arithmetic number, because the mean of its divisors is an integer number (3219009).

Almost surely, 2^16891022 is an apocalyptic number.

16891022 is a deficient number, since it is larger than the sum of its proper divisors (8861050).

16891022 is a wasteful number, since it uses less digits than its factorization.

16891022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138514.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 16891022 is about 4109.8688543553. The cubic root of 16891022 is about 256.5775433153.

The spelling of 16891022 in words is "sixteen million, eight hundred ninety-one thousand, twenty-two".