289172669 has 8 divisors (see below), whose sum is σ = 306852480. Its totient is φ = 271567296.

The previous prime is 289172657. The next prime is 289172693. The reversal of 289172669 is 966271982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289172669 is a prime.

It is a super-2 number, since 2×289172669² = 167241664993167122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289172869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10499 + ... + 26240.

It is an arithmetic number, because the mean of its divisors is an integer number (38356560).

Almost surely, 2^289172669 is an apocalyptic number.

It is an amenable number.

289172669 is a deficient number, since it is larger than the sum of its proper divisors (17679811).

289172669 is a wasteful number, since it uses less digits than its factorization.

289172669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37219.

The product of its digits is 653184, while the sum is 50.

The square root of 289172669 is about 17005.0777416629. The cubic root of 289172669 is about 661.2805479721.

The spelling of 289172669 in words is "two hundred eighty-nine million, one hundred seventy-two thousand, six hundred sixty-nine".