11398939 has 2 divisors, whose sum is σ = 11398940. Its totient is φ = 11398938.

The previous prime is 11398931. The next prime is 11398949. The reversal of 11398939 is 93989311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11398939 - 2³ = 11398931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11398895 and 11398904.

It is not a weakly prime, because it can be changed into another prime (11398931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5699469 + 5699470.

It is an arithmetic number, because the mean of its divisors is an integer number (5699470).

Almost surely, 2^11398939 is an apocalyptic number.

11398939 is a deficient number, since it is larger than the sum of its proper divisors (1).

11398939 is an equidigital number, since it uses as much as digits as its factorization.

11398939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 43.

The square root of 11398939 is about 3376.2314790310. The cubic root of 11398939 is about 225.0547290734.

The spelling of 11398939 in words is "eleven million, three hundred ninety-eight thousand, nine hundred thirty-nine".