47918417 has 2 divisors, whose sum is σ = 47918418. Its totient is φ = 47918416.

The previous prime is 47918369. The next prime is 47918459. The reversal of 47918417 is 71481974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31990336 + 15928081 = 5656^2 + 3991^2 .

It is a cyclic number.

It is not a de Polignac number, because 47918417 - 2¹⁶ = 47852881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47918317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23959208 + 23959209.

It is an arithmetic number, because the mean of its divisors is an integer number (23959209).

Almost surely, 2^47918417 is an apocalyptic number.

It is an amenable number.

47918417 is a deficient number, since it is larger than the sum of its proper divisors (1).

47918417 is an equidigital number, since it uses as much as digits as its factorization.

47918417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 41.

The square root of 47918417 is about 6922.3129805001. The cubic root of 47918417 is about 363.2181043756.

The spelling of 47918417 in words is "forty-seven million, nine hundred eighteen thousand, four hundred seventeen".