475344989 has 8 divisors (see below), whose sum is σ = 543429888. Its totient is φ = 407304720.

The previous prime is 475344971. The next prime is 475344997. The reversal of 475344989 is 989443574.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475344989 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 475344989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475344589) 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, 16124 + ... + 34794.

It is an arithmetic number, because the mean of its divisors is an integer number (67928736).

Almost surely, 2^475344989 is an apocalyptic number.

It is an amenable number.

475344989 is a deficient number, since it is larger than the sum of its proper divisors (68084899).

475344989 is a wasteful number, since it uses less digits than its factorization.

475344989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22315.

The product of its digits is 4354560, while the sum is 53.

The square root of 475344989 is about 21802.4078716090. The cubic root of 475344989 is about 780.4342251302.

The spelling of 475344989 in words is "four hundred seventy-five million, three hundred forty-four thousand, nine hundred eighty-nine".