16809734 has 16 divisors (see below), whose sum is σ = 27220320. Its totient is φ = 7761600.

The previous prime is 16809679. The next prime is 16809739. The reversal of 16809734 is 43790861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16809739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4967 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (1701270).

Almost surely, 2^16809734 is an apocalyptic number.

16809734 is a deficient number, since it is larger than the sum of its proper divisors (10410586).

16809734 is a wasteful number, since it uses less digits than its factorization.

16809734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12655.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 16809734 is about 4099.9675608473. The cubic root of 16809734 is about 256.1652883583.

The spelling of 16809734 in words is "sixteen million, eight hundred nine thousand, seven hundred thirty-four".