289930870 has 16 divisors (see below), whose sum is σ = 544566240. Its totient is φ = 110929984.

The previous prime is 289930867. The next prime is 289930877. The reversal of 289930870 is 78039982.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 289930870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289930877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630055 + ... + 630514.

It is an arithmetic number, because the mean of its divisors is an integer number (34035390).

Almost surely, 2^289930870 is an apocalyptic number.

289930870 is a deficient number, since it is larger than the sum of its proper divisors (254635370).

289930870 is a wasteful number, since it uses less digits than its factorization.

289930870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260599.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 289930870 is about 17027.3565182620. The cubic root of 289930870 is about 661.8579953592.

The spelling of 289930870 in words is "two hundred eighty-nine million, nine hundred thirty thousand, eight hundred seventy".