16989532 has 24 divisors (see below), whose sum is σ = 34119680. Its totient is φ = 7251120.

The previous prime is 16989529. The next prime is 16989547. The reversal of 16989532 is 23598961.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6469 + ... + 8707.

Almost surely, 2^16989532 is an apocalyptic number.

It is an amenable number.

16989532 is an abundant number, since it is smaller than the sum of its proper divisors (17130148).

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

16989532 is a wasteful number, since it uses less digits than its factorization.

16989532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2519 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 16989532 is about 4121.8359986783. The cubic root of 16989532 is about 257.0753714143.

The spelling of 16989532 in words is "sixteen million, nine hundred eighty-nine thousand, five hundred thirty-two".