47872537 has 2 divisors, whose sum is σ = 47872538. Its totient is φ = 47872536.

The previous prime is 47872529. The next prime is 47872547. The reversal of 47872537 is 73527874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28344976 + 19527561 = 5324^2 + 4419^2 .

It is a cyclic number.

It is not a de Polignac number, because 47872537 - 2³ = 47872529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47872493 and 47872502.

It is not a weakly prime, because it can be changed into another prime (47872547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23936268 + 23936269.

It is an arithmetic number, because the mean of its divisors is an integer number (23936269).

Almost surely, 2^47872537 is an apocalyptic number.

It is an amenable number.

47872537 is a deficient number, since it is larger than the sum of its proper divisors (1).

47872537 is an equidigital number, since it uses as much as digits as its factorization.

47872537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 329280, while the sum is 43.

The square root of 47872537 is about 6918.9982656451. The cubic root of 47872537 is about 363.1021450082.

The spelling of 47872537 in words is "forty-seven million, eight hundred seventy-two thousand, five hundred thirty-seven".