47259217 has 2 divisors, whose sum is σ = 47259218. Its totient is φ = 47259216.

The previous prime is 47259211. The next prime is 47259229. The reversal of 47259217 is 71295274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32444416 + 14814801 = 5696^2 + 3849^2 .

It is a cyclic number.

It is not a de Polignac number, because 47259217 - 2¹⁵ = 47226449 is a prime.

It is not a weakly prime, because it can be changed into another prime (47259211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23629608 + 23629609.

It is an arithmetic number, because the mean of its divisors is an integer number (23629609).

Almost surely, 2^47259217 is an apocalyptic number.

It is an amenable number.

47259217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47259217 is an equidigital number, since it uses as much as digits as its factorization.

47259217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 37.

The square root of 47259217 is about 6874.5339478397. The cubic root of 47259217 is about 361.5448452739.

The spelling of 47259217 in words is "forty-seven million, two hundred fifty-nine thousand, two hundred seventeen".