16794621 has 10 divisors (see below), whose sum is σ = 25088382. Its totient is φ = 11196360.

The previous prime is 16794571. The next prime is 16794643. The reversal of 16794621 is 12649761.

It can be written as a sum of positive squares in only one way, i.e., 16695396 + 99225 = 4086^2 + 315^2 .

It is not a de Polignac number, because 16794621 - 2⁷ = 16794493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16794671) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 103590 + ... + 103751.

Almost surely, 2^16794621 is an apocalyptic number.

It is an amenable number.

16794621 is a deficient number, since it is larger than the sum of its proper divisors (8293761).

16794621 is an equidigital number, since it uses as much as digits as its factorization.

16794621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207353 (or 207344 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 16794621 is about 4098.1240830409. The cubic root of 16794621 is about 256.0884958125.

The spelling of 16794621 in words is "sixteen million, seven hundred ninety-four thousand, six hundred twenty-one".