17061989 has 4 divisors (see below), whose sum is σ = 19499424. Its totient is φ = 14624556.

The previous prime is 17061977. The next prime is 17061991. The reversal of 17061989 is 98916071.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 17061989 - 2¹⁶ = 16996453 is a prime.

It is a super-2 number, since 2×17061989² = 582222937272242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17061589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218707 + ... + 1218720.

It is an arithmetic number, because the mean of its divisors is an integer number (4874856).

Almost surely, 2^17061989 is an apocalyptic number.

It is an amenable number.

17061989 is a deficient number, since it is larger than the sum of its proper divisors (2437435).

17061989 is an equidigital number, since it uses as much as digits as its factorization.

17061989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437434.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 17061989 is about 4130.6160557476. The cubic root of 17061989 is about 257.4403116751.

The spelling of 17061989 in words is "seventeen million, sixty-one thousand, nine hundred eighty-nine".