16498891 has 8 divisors (see below), whose sum is σ = 17560800. Its totient is φ = 15447168.

The previous prime is 16498879. The next prime is 16498901. The reversal of 16498891 is 19889461.

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

It is a cyclic number.

It is not a de Polignac number, because 16498891 - 2⁹ = 16498379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16498831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945 + ... + 5821.

It is an arithmetic number, because the mean of its divisors is an integer number (2195100).

Almost surely, 2^16498891 is an apocalyptic number.

16498891 is a deficient number, since it is larger than the sum of its proper divisors (1061909).

16498891 is a wasteful number, since it uses less digits than its factorization.

16498891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093.

The product of its digits is 124416, while the sum is 46.

The square root of 16498891 is about 4061.8826915607. The cubic root of 16498891 is about 254.5764646860.

The spelling of 16498891 in words is "sixteen million, four hundred ninety-eight thousand, eight hundred ninety-one".