16809696 has 36 divisors (see below), whose sum is σ = 47803392. Its totient is φ = 5603136.

The previous prime is 16809679. The next prime is 16809739. The reversal of 16809696 is 69690861.

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

It is a super-2 number, since 2×16809696² = 565131759224832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28896 + ... + 29471.

It is an arithmetic number, because the mean of its divisors is an integer number (1327872).

Almost surely, 2^16809696 is an apocalyptic number.

16809696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16809696 is an abundant number, since it is smaller than the sum of its proper divisors (30993696).

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

16809696 is a wasteful number, since it uses less digits than its factorization.

16809696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58383 (or 58372 counting only the distinct ones).

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

The square root of 16809696 is about 4099.9629266617. The cubic root of 16809696 is about 256.1650953295.

The spelling of 16809696 in words is "sixteen million, eight hundred nine thousand, six hundred ninety-six".