47997529 has 2 divisors, whose sum is σ = 47997530. Its totient is φ = 47997528.

The previous prime is 47997497. The next prime is 47997557. The reversal of 47997529 is 92579974.

It is a happy number.

47997529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43917129 + 4080400 = 6627^2 + 2020^2 .

It is a cyclic number.

It is not a de Polignac number, because 47997529 - 2⁵ = 47997497 is a prime.

It is not a weakly prime, because it can be changed into another prime (47997559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23998764 + 23998765.

It is an arithmetic number, because the mean of its divisors is an integer number (23998765).

Almost surely, 2^47997529 is an apocalyptic number.

It is an amenable number.

47997529 is a deficient number, since it is larger than the sum of its proper divisors (1).

47997529 is an equidigital number, since it uses as much as digits as its factorization.

47997529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 52.

The square root of 47997529 is about 6928.0248989160. The cubic root of 47997529 is about 363.4178822025.

The spelling of 47997529 in words is "forty-seven million, nine hundred ninety-seven thousand, five hundred twenty-nine".