47537321 has 12 divisors (see below), whose sum is σ = 54386892. Its totient is φ = 41296128.

The previous prime is 47537311. The next prime is 47537323. The reversal of 47537321 is 12373574.

It can be written as a sum of positive squares in 6 ways, for example, as 3168400 + 44368921 = 1780^2 + 6661^2 .

It is not a de Polignac number, because 47537321 - 2¹⁸ = 47275177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47537323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2570 + ... + 10083.

It is an arithmetic number, because the mean of its divisors is an integer number (4532241).

Almost surely, 2^47537321 is an apocalyptic number.

It is an amenable number.

47537321 is a deficient number, since it is larger than the sum of its proper divisors (6849571).

47537321 is a wasteful number, since it uses less digits than its factorization.

47537321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12700 (or 12683 counting only the distinct ones).

The product of its digits is 17640, while the sum is 32.

The square root of 47537321 is about 6894.7313943329. The cubic root of 47537321 is about 362.2526471106.

The spelling of 47537321 in words is "forty-seven million, five hundred thirty-seven thousand, three hundred twenty-one".