47865773 has 2 divisors, whose sum is σ = 47865774. Its totient is φ = 47865772.

The previous prime is 47865757. The next prime is 47865799. The reversal of 47865773 is 37756874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29735209 + 18130564 = 5453^2 + 4258^2 .

It is a cyclic number.

It is not a de Polignac number, because 47865773 - 2⁴ = 47865757 is a prime.

It is a super-2 number, since 2×47865773² = 4582264449775058, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47865703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23932886 + 23932887.

It is an arithmetic number, because the mean of its divisors is an integer number (23932887).

Almost surely, 2^47865773 is an apocalyptic number.

It is an amenable number.

47865773 is a deficient number, since it is larger than the sum of its proper divisors (1).

47865773 is an equidigital number, since it uses as much as digits as its factorization.

47865773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 47.

The square root of 47865773 is about 6918.5094492961. The cubic root of 47865773 is about 363.0850430764.

The spelling of 47865773 in words is "forty-seven million, eight hundred sixty-five thousand, seven hundred seventy-three".