8913239 has 2 divisors, whose sum is σ = 8913240. Its totient is φ = 8913238.

The previous prime is 8913199. The next prime is 8913283. The reversal of 8913239 is 9323198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8913239 - 2¹² = 8909143 is a prime.

It is a super-2 number, since 2×8913239² = 158891658942242, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8913199 and 8913208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8913139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4456619 + 4456620.

It is an arithmetic number, because the mean of its divisors is an integer number (4456620).

Almost surely, 2^8913239 is an apocalyptic number.

8913239 is a deficient number, since it is larger than the sum of its proper divisors (1).

8913239 is an equidigital number, since it uses as much as digits as its factorization.

8913239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 8913239 is about 2985.5048149350. The cubic root of 8913239 is about 207.3378149129.

The spelling of 8913239 in words is "eight million, nine hundred thirteen thousand, two hundred thirty-nine".