16689036 has 192 divisors, whose sum is σ = 54190080. Its totient is φ = 3870720.

The previous prime is 16688999. The next prime is 16689061. The reversal of 16689036 is 63098661.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 16688985 and 16689003.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 538341 + ... + 538371.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

Almost surely, 2^16689036 is an apocalyptic number.

16689036 is the 2184-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16689036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27095040).

16689036 is an abundant number, since it is smaller than the sum of its proper divisors (37501044).

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

16689036 is a wasteful number, since it uses less digits than its factorization.

16689036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 16689036 is about 4085.2216586129. The cubic root of 16689036 is about 255.5507052500.

The spelling of 16689036 in words is "sixteen million, six hundred eighty-nine thousand, thirty-six".