47438743 has 8 divisors (see below), whose sum is σ = 51941520. Its totient is φ = 42967680.

The previous prime is 47438737. The next prime is 47438753. The reversal of 47438743 is 34783474.

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 47438743 - 2²¹ = 45341591 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47438696 and 47438705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47438753) 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 7 ways as a sum of consecutive naturals, for example, 4738 + ... + 10831.

It is an arithmetic number, because the mean of its divisors is an integer number (6492690).

Almost surely, 2^47438743 is an apocalyptic number.

47438743 is a deficient number, since it is larger than the sum of its proper divisors (4502777).

47438743 is a wasteful number, since it uses less digits than its factorization.

47438743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15857.

The product of its digits is 225792, while the sum is 40.

The square root of 47438743 is about 6887.5788924701. The cubic root of 47438743 is about 362.0020730832.

The spelling of 47438743 in words is "forty-seven million, four hundred thirty-eight thousand, seven hundred forty-three".