47439338 has 8 divisors (see below), whose sum is σ = 71193540. Its totient is φ = 23708160.

The previous prime is 47439323. The next prime is 47439347. The reversal of 47439338 is 83393474.

It can be written as a sum of positive squares in 2 ways, for example, as 44983849 + 2455489 = 6707^2 + 1567^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 47439295 and 47439304.

It is an unprimeable number.

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, 968 + ... + 9788.

Almost surely, 2^47439338 is an apocalyptic number.

47439338 is a deficient number, since it is larger than the sum of its proper divisors (23754202).

47439338 is a wasteful number, since it uses less digits than its factorization.

47439338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11512.

The product of its digits is 217728, while the sum is 41.

The square root of 47439338 is about 6887.6220860323. The cubic root of 47439338 is about 362.0035865461.

The spelling of 47439338 in words is "forty-seven million, four hundred thirty-nine thousand, three hundred thirty-eight".