47439589 has 4 divisors (see below), whose sum is σ = 47480940. Its totient is φ = 47398240.

The previous prime is 47439569. The next prime is 47439617. The reversal of 47439589 is 98593474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45360225 + 2079364 = 6735^2 + 1442^2 .

It is a cyclic number.

It is not a de Polignac number, because 47439589 - 2⁷ = 47439461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47439569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18904 + ... + 21265.

It is an arithmetic number, because the mean of its divisors is an integer number (11870235).

Almost surely, 2^47439589 is an apocalyptic number.

It is an amenable number.

47439589 is a deficient number, since it is larger than the sum of its proper divisors (41351).

47439589 is a wasteful number, since it uses less digits than its factorization.

47439589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41350.

The product of its digits is 1088640, while the sum is 49.

The square root of 47439589 is about 6887.6403071008. The cubic root of 47439589 is about 362.0042249947.

The spelling of 47439589 in words is "forty-seven million, four hundred thirty-nine thousand, five hundred eighty-nine".