3618239 has 2 divisors, whose sum is σ = 3618240. Its totient is φ = 3618238.

The previous prime is 3618233. The next prime is 3618247. The reversal of 3618239 is 9328163.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3618239 - 2⁸ = 3617983 is a prime.

It is a super-2 number, since 2×3618239² = 26183306922242, which contains 22 as substring.

It is a Chen prime.

It is equal to p₂₅₇₉₈₁ and since 3618239 and 257981 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3618233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809119 + 1809120.

It is an arithmetic number, because the mean of its divisors is an integer number (1809120).

Almost surely, 2^3618239 is an apocalyptic number.

3618239 is a deficient number, since it is larger than the sum of its proper divisors (1).

3618239 is an equidigital number, since it uses as much as digits as its factorization.

3618239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 3618239 is about 1902.1669222232. The cubic root of 3618239 is about 153.5202787032.

The spelling of 3618239 in words is "three million, six hundred eighteen thousand, two hundred thirty-nine".