47442937 has 8 divisors (see below), whose sum is σ = 50680296. Its totient is φ = 44255232.

The previous prime is 47442931. The next prime is 47442953. The reversal of 47442937 is 73924474.

It can be written as a sum of positive squares in 4 ways, for example, as 10342656 + 37100281 = 3216^2 + 6091^2 .

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 47442937 - 2³ = 47442929 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 47442937.

It is not an unprimeable number, because it can be changed into a prime (47442931) 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, 10428 + ... + 14269.

It is an arithmetic number, because the mean of its divisors is an integer number (6335037).

Almost surely, 2^47442937 is an apocalyptic number.

It is an amenable number.

47442937 is a deficient number, since it is larger than the sum of its proper divisors (3237359).

47442937 is a wasteful number, since it uses less digits than its factorization.

47442937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24827.

The product of its digits is 169344, while the sum is 40.

The square root of 47442937 is about 6887.8833468635. The cubic root of 47442937 is about 362.0127408191.

The spelling of 47442937 in words is "forty-seven million, four hundred forty-two thousand, nine hundred thirty-seven".