47007217 has 2 divisors, whose sum is σ = 47007218. Its totient is φ = 47007216.

The previous prime is 47007211. The next prime is 47007221. The reversal of 47007217 is 71270074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 207936 = 6841^2 + 456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47007217 is a prime.

It is not a weakly prime, because it can be changed into another prime (47007211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23503608 + 23503609.

It is an arithmetic number, because the mean of its divisors is an integer number (23503609).

Almost surely, 2^47007217 is an apocalyptic number.

It is an amenable number.

47007217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47007217 is an equidigital number, since it uses as much as digits as its factorization.

47007217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 47007217 is about 6856.1809340186. The cubic root of 47007217 is about 360.9010786272.

The spelling of 47007217 in words is "forty-seven million, seven thousand, two hundred seventeen".