289363894 has 4 divisors (see below), whose sum is σ = 434045844. Its totient is φ = 144681946.

The previous prime is 289363883. The next prime is 289363903. The reversal of 289363894 is 498363982.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72340972 + ... + 72340975.

It is an arithmetic number, because the mean of its divisors is an integer number (108511461).

Almost surely, 2^289363894 is an apocalyptic number.

289363894 is a deficient number, since it is larger than the sum of its proper divisors (144681950).

289363894 is a wasteful number, since it uses less digits than its factorization.

289363894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144681949.

The product of its digits is 2239488, while the sum is 52.

The square root of 289363894 is about 17010.6993977320. The cubic root of 289363894 is about 661.4262804044.

The spelling of 289363894 in words is "two hundred eighty-nine million, three hundred sixty-three thousand, eight hundred ninety-four".