16813806 has 8 divisors (see below), whose sum is σ = 33627624. Its totient is φ = 5604600.

The previous prime is 16813801. The next prime is 16813831. The reversal of 16813806 is 60831861.

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

16813806 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16813801) 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 3 ways as a sum of consecutive naturals, for example, 1401145 + ... + 1401156.

It is an arithmetic number, because the mean of its divisors is an integer number (4203453).

Almost surely, 2^16813806 is an apocalyptic number.

16813806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16813806 is a wasteful number, since it uses less digits than its factorization.

16813806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802306.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 16813806 is about 4100.4641200723. The cubic root of 16813806 is about 256.1859712324.

The spelling of 16813806 in words is "sixteen million, eight hundred thirteen thousand, eight hundred six".