4217939 has 8 divisors (see below), whose sum is σ = 4640880. Its totient is φ = 3833280.

The previous prime is 4217929. The next prime is 4217959. The reversal of 4217939 is 9397124.

It is not a de Polignac number, because 4217939 - 2⁴ = 4217923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4217899 and 4217908.

It is not an unprimeable number, because it can be changed into a prime (4217909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254 + ... + 2915.

It is an arithmetic number, because the mean of its divisors is an integer number (580110).

Almost surely, 2^4217939 is an apocalyptic number.

4217939 is a deficient number, since it is larger than the sum of its proper divisors (422941).

4217939 is an equidigital number, since it uses as much as digits as its factorization.

4217939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202 (or 3180 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 4217939 is about 2053.7621576025. The cubic root of 4217939 is about 161.5722470353.

The spelling of 4217939 in words is "four million, two hundred seventeen thousand, nine hundred thirty-nine".