478274589 has 24 divisors (see below), whose sum is σ = 748314840. Its totient is φ = 292609152.

The previous prime is 478274579. The next prime is 478274633. The reversal of 478274589 is 985472874.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5212089 + 473062500 = 2283^2 + 21750^2 .

It is not a de Polignac number, because 478274589 - 2²¹ = 476177437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478274579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8427 + ... + 32055.

It is an arithmetic number, because the mean of its divisors is an integer number (31179785).

Almost surely, 2^478274589 is an apocalyptic number.

It is an amenable number.

478274589 is a deficient number, since it is larger than the sum of its proper divisors (270040251).

478274589 is a wasteful number, since it uses less digits than its factorization.

478274589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23821 (or 23818 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 478274589 is about 21869.4899117469. The cubic root of 478274589 is about 782.0342413649.

The spelling of 478274589 in words is "four hundred seventy-eight million, two hundred seventy-four thousand, five hundred eighty-nine".