47538613 has 8 divisors (see below), whose sum is σ = 50395608. Its totient is φ = 44688384.

The previous prime is 47538583. The next prime is 47538629. The reversal of 47538613 is 31683574.

It can be written as a sum of positive squares in 4 ways, for example, as 8625969 + 38912644 = 2937^2 + 6238^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47538613 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 (47538313) 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, 24445 + ... + 26317.

It is an arithmetic number, because the mean of its divisors is an integer number (6299451).

Almost surely, 2^47538613 is an apocalyptic number.

It is an amenable number.

47538613 is a deficient number, since it is larger than the sum of its proper divisors (2856995).

47538613 is a wasteful number, since it uses less digits than its factorization.

47538613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its digits is 60480, while the sum is 37.

The square root of 47538613 is about 6894.8250884268. The cubic root of 47538613 is about 362.2559289263.

It can be divided in two parts, 4753 and 8613, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 47538613 in words is "forty-seven million, five hundred thirty-eight thousand, six hundred thirteen".