4229947 has 2 divisors, whose sum is σ = 4229948. Its totient is φ = 4229946.

The previous prime is 4229941. The next prime is 4229971. The reversal of 4229947 is 7499224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4229947 - 2¹⁹ = 3705659 is a prime.

It is a d-powerful number, because it can be written as 4⁴ + 2⁷ + 2¹⁵ + 9 + 9² + 4¹¹ + 7⁴ .

It is not a weakly prime, because it can be changed into another prime (4229941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114973 + 2114974.

It is an arithmetic number, because the mean of its divisors is an integer number (2114974).

Almost surely, 2^4229947 is an apocalyptic number.

4229947 is a deficient number, since it is larger than the sum of its proper divisors (1).

4229947 is an equidigital number, since it uses as much as digits as its factorization.

4229947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 4229947 is about 2056.6834953390. The cubic root of 4229947 is about 161.7254277957.

The spelling of 4229947 in words is "four million, two hundred twenty-nine thousand, nine hundred forty-seven".