4821239 has 2 divisors, whose sum is σ = 4821240. Its totient is φ = 4821238.

The previous prime is 4821209. The next prime is 4821241. The reversal of 4821239 is 9321284.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4821239 - 2⁸ = 4820983 is a prime.

Together with 4821241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4821209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2410619 + 2410620.

It is an arithmetic number, because the mean of its divisors is an integer number (2410620).

Almost surely, 2^4821239 is an apocalyptic number.

4821239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4821239 is an equidigital number, since it uses as much as digits as its factorization.

4821239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 4821239 is about 2195.7319963966. The cubic root of 4821239 is about 168.9349679176.

The spelling of 4821239 in words is "four million, eight hundred twenty-one thousand, two hundred thirty-nine".