17989002 has 12 divisors (see below), whose sum is σ = 38976210. Its totient is φ = 5996328.

The previous prime is 17988989. The next prime is 17989039. The reversal of 17989002 is 20098971.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17969121 + 19881 = 4239^2 + 141^2 .

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, 499677 + ... + 499712.

Almost surely, 2^17989002 is an apocalyptic number.

17989002 is an abundant number, since it is smaller than the sum of its proper divisors (20987208).

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

17989002 is a wasteful number, since it uses less digits than its factorization.

17989002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999397 (or 999394 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 17989002 is about 4241.3443623455. The cubic root of 17989002 is about 262.0207527799.

The spelling of 17989002 in words is "seventeen million, nine hundred eighty-nine thousand, two".