18596849 has 2 divisors, whose sum is σ = 18596850. Its totient is φ = 18596848.

The previous prime is 18596843. The next prime is 18596873. The reversal of 18596849 is 94869581.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10445824 + 8151025 = 3232^2 + 2855^2 .

It is a cyclic number.

It is not a de Polignac number, because 18596849 - 2⁸ = 18596593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18596797 and 18596806.

It is not a weakly prime, because it can be changed into another prime (18596843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9298424 + 9298425.

It is an arithmetic number, because the mean of its divisors is an integer number (9298425).

Almost surely, 2^18596849 is an apocalyptic number.

It is an amenable number.

18596849 is a deficient number, since it is larger than the sum of its proper divisors (1).

18596849 is an equidigital number, since it uses as much as digits as its factorization.

18596849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 50.

The square root of 18596849 is about 4312.4064047814. The cubic root of 18596849 is about 264.9393429462.

The spelling of 18596849 in words is "eighteen million, five hundred ninety-six thousand, eight hundred forty-nine".