289123068 has 48 divisors (see below), whose sum is σ = 729860096. Its totient is φ = 88551360.

The previous prime is 289123061. The next prime is 289123091. The reversal of 289123068 is 860321982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289123061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30633 + ... + 38943.

Almost surely, 2^289123068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289123068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364930048).

289123068 is an abundant number, since it is smaller than the sum of its proper divisors (440737028).

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

289123068 is a wasteful number, since it uses less digits than its factorization.

289123068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554 (or 8552 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 289123068 is about 17003.6192617925. The cubic root of 289123068 is about 661.2427365933.

The spelling of 289123068 in words is "two hundred eighty-nine million, one hundred twenty-three thousand, sixty-eight".