289864964 has 6 divisors (see below), whose sum is σ = 507263694. Its totient is φ = 144932480.

The previous prime is 289864937. The next prime is 289864979. The reversal of 289864964 is 469468982.

It can be written as a sum of positive squares in only one way, i.e., 289272064 + 592900 = 17008^2 + 770^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36233117 + ... + 36233124.

It is an arithmetic number, because the mean of its divisors is an integer number (84543949).

Almost surely, 2^289864964 is an apocalyptic number.

It is an amenable number.

289864964 is a deficient number, since it is larger than the sum of its proper divisors (217398730).

289864964 is a wasteful number, since it uses less digits than its factorization.

289864964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72466245 (or 72466243 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 56.

The square root of 289864964 is about 17025.4211107978. The cubic root of 289864964 is about 661.8078411981.

The spelling of 289864964 in words is "two hundred eighty-nine million, eight hundred sixty-four thousand, nine hundred sixty-four".