16834993 has 16 divisors (see below), whose sum is σ = 20090880. Its totient is φ = 13801536.

The previous prime is 16834957. The next prime is 16834997. The reversal of 16834993 is 39943861.

It is not a de Polignac number, because 16834993 - 2²¹ = 14737841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16834997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25455 + ... + 26107.

It is an arithmetic number, because the mean of its divisors is an integer number (1255680).

Almost surely, 2^16834993 is an apocalyptic number.

It is an amenable number.

16834993 is a deficient number, since it is larger than the sum of its proper divisors (3255887).

16834993 is a wasteful number, since it uses less digits than its factorization.

16834993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its digits is 139968, while the sum is 43.

The square root of 16834993 is about 4103.0467947612. The cubic root of 16834993 is about 256.2935323226.

The spelling of 16834993 in words is "sixteen million, eight hundred thirty-four thousand, nine hundred ninety-three".