289660972 has 36 divisors (see below), whose sum is σ = 524691216. Its totient is φ = 139891360.

The previous prime is 289660967. The next prime is 289661027. The reversal of 289660972 is 279066982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 988458 + ... + 988750.

It is an arithmetic number, because the mean of its divisors is an integer number (14574756).

Almost surely, 2^289660972 is an apocalyptic number.

It is an amenable number.

289660972 is a deficient number, since it is larger than the sum of its proper divisors (235030244).

289660972 is a wasteful number, since it uses less digits than its factorization.

289660972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 289660972 is about 17019.4292501247. The cubic root of 289660972 is about 661.6525560322.

The spelling of 289660972 in words is "two hundred eighty-nine million, six hundred sixty thousand, nine hundred seventy-two".