47705737 has 2 divisors, whose sum is σ = 47705738. Its totient is φ = 47705736.

The previous prime is 47705701. The next prime is 47705741. The reversal of 47705737 is 73750774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37650496 + 10055241 = 6136^2 + 3171^2 .

It is a cyclic number.

It is not a de Polignac number, because 47705737 - 2²³ = 39317129 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47705737.

It is not a weakly prime, because it can be changed into another prime (47705747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23852868 + 23852869.

It is an arithmetic number, because the mean of its divisors is an integer number (23852869).

Almost surely, 2^47705737 is an apocalyptic number.

It is an amenable number.

47705737 is a deficient number, since it is larger than the sum of its proper divisors (1).

47705737 is an equidigital number, since it uses as much as digits as its factorization.

47705737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144060, while the sum is 40.

The square root of 47705737 is about 6906.9339797047. The cubic root of 47705737 is about 362.6799411043.

The spelling of 47705737 in words is "forty-seven million, seven hundred five thousand, seven hundred thirty-seven".