289016485 has 8 divisors (see below), whose sum is σ = 347339160. Its totient is φ = 230866944.

The previous prime is 289016479. The next prime is 289016491. The reversal of 289016485 is 584610982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (289016479) and next prime (289016491).

It can be written as a sum of positive squares in 4 ways, for example, as 76615009 + 212401476 = 8753^2 + 14574^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 289016485 - 2³ = 289016477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39580 + ... + 46309.

It is an arithmetic number, because the mean of its divisors is an integer number (43417395).

Almost surely, 2^289016485 is an apocalyptic number.

It is an amenable number.

289016485 is a deficient number, since it is larger than the sum of its proper divisors (58322675).

289016485 is an equidigital number, since it uses as much as digits as its factorization.

289016485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86567.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 289016485 is about 17000.4848460272. The cubic root of 289016485 is about 661.1614725868.

The spelling of 289016485 in words is "two hundred eighty-nine million, sixteen thousand, four hundred eighty-five".