289474849 has 4 divisors (see below), whose sum is σ = 302060736. Its totient is φ = 276888964.

The previous prime is 289474841. The next prime is 289474859. The reversal of 289474849 is 948474982.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289474849 - 2³ = 289474841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289474849.

It is not an unprimeable number, because it can be changed into a prime (289474841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6292909 + ... + 6292954.

It is an arithmetic number, because the mean of its divisors is an integer number (75515184).

Almost surely, 2^289474849 is an apocalyptic number.

It is an amenable number.

289474849 is a deficient number, since it is larger than the sum of its proper divisors (12585887).

289474849 is a wasteful number, since it uses less digits than its factorization.

289474849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12585886.

The product of its digits is 4644864, while the sum is 55.

The square root of 289474849 is about 17013.9604149063. The cubic root of 289474849 is about 661.5108096959.

The spelling of 289474849 in words is "two hundred eighty-nine million, four hundred seventy-four thousand, eight hundred forty-nine".