16810812 has 36 divisors (see below), whose sum is σ = 43099056. Its totient is φ = 5523840.

The previous prime is 16810793. The next prime is 16810813. The reversal of 16810812 is 21801861.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16810813) 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, 733 + ... + 5844.

It is an arithmetic number, because the mean of its divisors is an integer number (1197196).

Almost surely, 2^16810812 is an apocalyptic number.

16810812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16810812 is an abundant number, since it is smaller than the sum of its proper divisors (26288244).

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

16810812 is a wasteful number, since it uses less digits than its factorization.

16810812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6658 (or 6653 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 16810812 is about 4100.0990231944. The cubic root of 16810812 is about 256.1707641593.

The spelling of 16810812 in words is "sixteen million, eight hundred ten thousand, eight hundred twelve".