289993653 has 12 divisors (see below), whose sum is σ = 421008588. Its totient is φ = 192346560.

The previous prime is 289993651. The next prime is 289993657. The reversal of 289993653 is 356399982.

It can be written as a sum of positive squares in 2 ways, for example, as 185586129 + 104407524 = 13623^2 + 10218^2 .

It is not a de Polignac number, because 289993653 - 2¹ = 289993651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289993653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289993651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80008 + ... + 83553.

It is an arithmetic number, because the mean of its divisors is an integer number (35084049).

Almost surely, 2^289993653 is an apocalyptic number.

It is an amenable number.

289993653 is a deficient number, since it is larger than the sum of its proper divisors (131014935).

289993653 is a wasteful number, since it uses less digits than its factorization.

289993653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163764 (or 163761 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 289993653 is about 17029.2000105701. The cubic root of 289993653 is about 661.9057658633.

The spelling of 289993653 in words is "two hundred eighty-nine million, nine hundred ninety-three thousand, six hundred fifty-three".