289424747 has 8 divisors (see below), whose sum is σ = 292940544. Its totient is φ = 285922728.

The previous prime is 289424743. The next prime is 289424749. The reversal of 289424747 is 747424982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289424747 - 2² = 289424743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289424743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42458 + ... + 48800.

It is an arithmetic number, because the mean of its divisors is an integer number (36617568).

Almost surely, 2^289424747 is an apocalyptic number.

289424747 is a deficient number, since it is larger than the sum of its proper divisors (3515797).

289424747 is a wasteful number, since it uses less digits than its factorization.

289424747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889.

The product of its digits is 903168, while the sum is 47.

The square root of 289424747 is about 17012.4879720751. The cubic root of 289424747 is about 661.4726429639.

The spelling of 289424747 in words is "two hundred eighty-nine million, four hundred twenty-four thousand, seven hundred forty-seven".