16985694 has 32 divisors (see below), whose sum is σ = 37676160. Its totient is φ = 5061600.

The previous prime is 16985663. The next prime is 16985699. The reversal of 16985694 is 49658961.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16985699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917 + ... + 6135.

It is an arithmetic number, because the mean of its divisors is an integer number (1177380).

Almost surely, 2^16985694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16985694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18838080).

16985694 is an abundant number, since it is smaller than the sum of its proper divisors (20690466).

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

16985694 is a wasteful number, since it uses less digits than its factorization.

16985694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296.

The product of its digits is 466560, while the sum is 48.

The square root of 16985694 is about 4121.3704031548. The cubic root of 16985694 is about 257.0560118546.

The spelling of 16985694 in words is "sixteen million, nine hundred eighty-five thousand, six hundred ninety-four".