3994717 has 2 divisors, whose sum is σ = 3994718. Its totient is φ = 3994716.

The previous prime is 3994699. The next prime is 3994723. The reversal of 3994717 is 7174993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3426201 + 568516 = 1851^2 + 754^2 .

It is a cyclic number.

It is not a de Polignac number, because 3994717 - 2¹⁵ = 3961949 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 3994717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3994747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997358 + 1997359.

It is an arithmetic number, because the mean of its divisors is an integer number (1997359).

Almost surely, 2^3994717 is an apocalyptic number.

It is an amenable number.

3994717 is a deficient number, since it is larger than the sum of its proper divisors (1).

3994717 is an equidigital number, since it uses as much as digits as its factorization.

3994717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 40.

The square root of 3994717 is about 1998.6788136166. The cubic root of 3994717 is about 158.6701890759.

It can be divided in two parts, 39 and 94717, that multiplied together give a palindrome (3693963).

The spelling of 3994717 in words is "three million, nine hundred ninety-four thousand, seven hundred seventeen".