289999634 has 16 divisors (see below), whose sum is σ = 461334528. Its totient is φ = 136249152.

The previous prime is 289999631. The next prime is 289999649. The reversal of 289999634 is 436999982.

289999634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (289999631) 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, 15407 + ... + 28589.

It is an arithmetic number, because the mean of its divisors is an integer number (28833408).

Almost surely, 2^289999634 is an apocalyptic number.

289999634 is a deficient number, since it is larger than the sum of its proper divisors (171334894).

289999634 is a wasteful number, since it uses less digits than its factorization.

289999634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13849.

The product of its digits is 7558272, while the sum is 59.

The square root of 289999634 is about 17029.3756197930. The cubic root of 289999634 is about 661.9103163436.

The spelling of 289999634 in words is "two hundred eighty-nine million, nine hundred ninety-nine thousand, six hundred thirty-four".