289888664 has 32 divisors (see below), whose sum is σ = 591948000. Its totient is φ = 132287232.

The previous prime is 289888663. The next prime is 289888691. The reversal of 289888664 is 466888982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289888663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6404 + ... + 24915.

It is an arithmetic number, because the mean of its divisors is an integer number (18498375).

Almost surely, 2^289888664 is an apocalyptic number.

It is an amenable number.

289888664 is an abundant number, since it is smaller than the sum of its proper divisors (302059336).

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

289888664 is a wasteful number, since it uses less digits than its factorization.

289888664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31427 (or 31423 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 59.

The square root of 289888664 is about 17026.1171145978. The cubic root of 289888664 is about 661.8258776637.

The spelling of 289888664 in words is "two hundred eighty-nine million, eight hundred eighty-eight thousand, six hundred sixty-four".