289012616 has 8 divisors (see below), whose sum is σ = 541898670. Its totient is φ = 144506304.

The previous prime is 289012583. The next prime is 289012627. The reversal of 289012616 is 616210982.

It can be written as a sum of positive squares in only one way, i.e., 151044100 + 137968516 = 12290^2 + 11746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18063281 + ... + 18063296.

Almost surely, 2^289012616 is an apocalyptic number.

It is an amenable number.

289012616 is a deficient number, since it is larger than the sum of its proper divisors (252886054).

289012616 is a wasteful number, since it uses less digits than its factorization.

289012616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36126583 (or 36126579 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 289012616 is about 17000.3710547741. The cubic root of 289012616 is about 661.1585222993.

The spelling of 289012616 in words is "two hundred eighty-nine million, twelve thousand, six hundred sixteen".