289497984 has 64 divisors (see below), whose sum is σ = 809472000. Its totient is φ = 91418112.

The previous prime is 289497919. The next prime is 289497997. The reversal of 289497984 is 489794982.

It is a tau number, because it is divible by the number of its divisors (64).

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, 12544 + ... + 27135.

It is an arithmetic number, because the mean of its divisors is an integer number (12648000).

Almost surely, 2^289497984 is an apocalyptic number.

289497984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

289497984 is an abundant number, since it is smaller than the sum of its proper divisors (519974016).

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

289497984 is a wasteful number, since it uses less digits than its factorization.

289497984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39715 (or 39703 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 60.

The square root of 289497984 is about 17014.6402841788. The cubic root of 289497984 is about 661.5284320039.

The spelling of 289497984 in words is "two hundred eighty-nine million, four hundred ninety-seven thousand, nine hundred eighty-four".