4390247 has 2 divisors, whose sum is σ = 4390248. Its totient is φ = 4390246.

The previous prime is 4390237. The next prime is 4390279. The reversal of 4390247 is 7420934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4390247 - 2¹⁰ = 4389223 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 4⁷ + 3¹¹ + 9 + 0 + 2 + 4¹¹ + 7⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4390207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195123 + 2195124.

It is an arithmetic number, because the mean of its divisors is an integer number (2195124).

Almost surely, 2^4390247 is an apocalyptic number.

4390247 is a deficient number, since it is larger than the sum of its proper divisors (1).

4390247 is an equidigital number, since it uses as much as digits as its factorization.

4390247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 4390247 is about 2095.2916264807. The cubic root of 4390247 is about 163.7430912144.

The spelling of 4390247 in words is "four million, three hundred ninety thousand, two hundred forty-seven".