47206717 has 2 divisors, whose sum is σ = 47206718. Its totient is φ = 47206716.

The previous prime is 47206681. The next prime is 47206727. The reversal of 47206717 is 71760274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26101881 + 21104836 = 5109^2 + 4594^2 .

It is a cyclic number.

It is not a de Polignac number, because 47206717 - 2⁷ = 47206589 is a prime.

It is equal to p_2843386 and since 47206717 and 2843386 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47206727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23603358 + 23603359.

It is an arithmetic number, because the mean of its divisors is an integer number (23603359).

Almost surely, 2^47206717 is an apocalyptic number.

It is an amenable number.

47206717 is a deficient number, since it is larger than the sum of its proper divisors (1).

47206717 is an equidigital number, since it uses as much as digits as its factorization.

47206717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 47206717 is about 6870.7144461111. The cubic root of 47206717 is about 361.4109162854.

The spelling of 47206717 in words is "forty-seven million, two hundred six thousand, seven hundred seventeen".