4791239 has 2 divisors, whose sum is σ = 4791240. Its totient is φ = 4791238.

The previous prime is 4791223. The next prime is 4791247. The reversal of 4791239 is 9321974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4791239 - 2⁴ = 4791223 is a prime.

It is a d-powerful number, because it can be written as 4² + 7² + 9 + 1 + 2¹³ + 3 + 9⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 4791199 and 4791208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4791299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2395619 + 2395620.

It is an arithmetic number, because the mean of its divisors is an integer number (2395620).

Almost surely, 2^4791239 is an apocalyptic number.

4791239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4791239 is an equidigital number, since it uses as much as digits as its factorization.

4791239 is an evil number, because the sum of its binary digits is even.

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

The square root of 4791239 is about 2188.8899012970. The cubic root of 4791239 is about 168.5838412017.

The spelling of 4791239 in words is "four million, seven hundred ninety-one thousand, two hundred thirty-nine".