16823965 has 16 divisors (see below), whose sum is σ = 21878208. Its totient is φ = 12370176.

The previous prime is 16823959. The next prime is 16823993. The reversal of 16823965 is 56932861.

It is a cyclic number.

It is not a de Polignac number, because 16823965 - 2³ = 16823957 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 1354 + ... + 5956.

It is an arithmetic number, because the mean of its divisors is an integer number (1367388).

Almost surely, 2^16823965 is an apocalyptic number.

It is an amenable number.

16823965 is a deficient number, since it is larger than the sum of its proper divisors (5054243).

16823965 is a wasteful number, since it uses less digits than its factorization.

16823965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668.

The product of its digits is 77760, while the sum is 40.

The square root of 16823965 is about 4101.7026952230. The cubic root of 16823965 is about 256.2375571987.

The spelling of 16823965 in words is "sixteen million, eight hundred twenty-three thousand, nine hundred sixty-five".