289669716 has 72 divisors (see below), whose sum is σ = 859669440. Its totient is φ = 82629072.

The previous prime is 289669669. The next prime is 289669727. The reversal of 289669716 is 617966982.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467655 + ... + 468273.

Almost surely, 2^289669716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289669716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429834720).

289669716 is an abundant number, since it is smaller than the sum of its proper divisors (569999724).

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

289669716 is an equidigital number, since it uses as much as digits as its factorization.

289669716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 631 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 289669716 is about 17019.6861310660. The cubic root of 289669716 is about 661.6592137370.

The spelling of 289669716 in words is "two hundred eighty-nine million, six hundred sixty-nine thousand, seven hundred sixteen".