16806996 has 36 divisors (see below), whose sum is σ = 42931252. Its totient is φ = 5543424.

The previous prime is 16806983. The next prime is 16807003. The reversal of 16806996 is 69960861.

It can be written as a sum of positive squares in 2 ways, for example, as 10150596 + 6656400 = 3186^2 + 2580^2 .

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

It is a super-2 number, since 2×16806996² = 564950229088032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1086 + ... + 5898.

Almost surely, 2^16806996 is an apocalyptic number.

It is an amenable number.

16806996 is an abundant number, since it is smaller than the sum of its proper divisors (26124256).

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

16806996 is a wasteful number, since it uses less digits than its factorization.

16806996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920 (or 4915 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 16806996 is about 4099.6336421685. The cubic root of 16806996 is about 256.1513793806.

The spelling of 16806996 in words is "sixteen million, eight hundred six thousand, nine hundred ninety-six".