17146989 has 12 divisors (see below), whose sum is σ = 24804156. Its totient is φ = 11414592.

The previous prime is 17146967. The next prime is 17146991. The reversal of 17146989 is 98964171.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5978025 + 11168964 = 2445^2 + 3342^2 .

It is not a de Polignac number, because 17146989 - 2⁵ = 17146957 is a prime.

It is a super-2 number, since 2×17146989² = 588038463532242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17106989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9939 + ... + 11535.

It is an arithmetic number, because the mean of its divisors is an integer number (2067013).

Almost surely, 2^17146989 is an apocalyptic number.

It is an amenable number.

17146989 is a deficient number, since it is larger than the sum of its proper divisors (7657167).

17146989 is a wasteful number, since it uses less digits than its factorization.

17146989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796 (or 2793 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 17146989 is about 4140.8922951461. The cubic root of 17146989 is about 257.8671120231.

The spelling of 17146989 in words is "seventeen million, one hundred forty-six thousand, nine hundred eighty-nine".