289398894 has 32 divisors (see below), whose sum is σ = 594397440. Its totient is φ = 93898752.

The previous prime is 289398887. The next prime is 289398943. The reversal of 289398894 is 498893982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32494 + ... + 40430.

It is an arithmetic number, because the mean of its divisors is an integer number (18574920).

Almost surely, 2^289398894 is an apocalyptic number.

289398894 is an abundant number, since it is smaller than the sum of its proper divisors (304998546).

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

289398894 is a wasteful number, since it uses less digits than its factorization.

289398894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8104.

The product of its digits is 8957952, while the sum is 60.

The square root of 289398894 is about 17011.7281309102. The cubic root of 289398894 is about 661.4529469271.

The spelling of 289398894 in words is "two hundred eighty-nine million, three hundred ninety-eight thousand, eight hundred ninety-four".