4197647 has 2 divisors, whose sum is σ = 4197648. Its totient is φ = 4197646.

The previous prime is 4197631. The next prime is 4197667. The reversal of 4197647 is 7467914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4197647 - 2⁴ = 4197631 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 4197647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098823 + 2098824.

It is an arithmetic number, because the mean of its divisors is an integer number (2098824).

Almost surely, 2^4197647 is an apocalyptic number.

4197647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197647 is an equidigital number, since it uses as much as digits as its factorization.

4197647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 4197647 is about 2048.8159995471. The cubic root of 4197647 is about 161.3127288343.

The spelling of 4197647 in words is "four million, one hundred ninety-seven thousand, six hundred forty-seven".