16704891 has 12 divisors (see below), whose sum is σ = 27576432. Its totient is φ = 9545616.

The previous prime is 16704889. The next prime is 16704901. The reversal of 16704891 is 19840761.

It is not a de Polignac number, because 16704891 - 2¹ = 16704889 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16704811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132516 + ... + 132641.

It is an arithmetic number, because the mean of its divisors is an integer number (2298036).

Almost surely, 2^16704891 is an apocalyptic number.

16704891 is a deficient number, since it is larger than the sum of its proper divisors (10871541).

16704891 is a wasteful number, since it uses less digits than its factorization.

16704891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265170 (or 265167 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 16704891 is about 4087.1617291221. The cubic root of 16704891 is about 255.6316061484.

It can be divided in two parts, 1670 and 4891, that added together give a 8-th power (6561 = 3⁸).

The spelling of 16704891 in words is "sixteen million, seven hundred four thousand, eight hundred ninety-one".