11398949 has 2 divisors, whose sum is σ = 11398950. Its totient is φ = 11398948.

The previous prime is 11398939. The next prime is 11398963. The reversal of 11398949 is 94989311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 1677025 = 3118^2 + 1295^2 .

It is an emirp because it is prime and its reverse (94989311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11398949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11398939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5699474 + 5699475.

It is an arithmetic number, because the mean of its divisors is an integer number (5699475).

Almost surely, 2^11398949 is an apocalyptic number.

It is an amenable number.

11398949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11398949 is an equidigital number, since it uses as much as digits as its factorization.

11398949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 44.

The square root of 11398949 is about 3376.2329599718. The cubic root of 11398949 is about 225.0547948850.

The spelling of 11398949 in words is "eleven million, three hundred ninety-eight thousand, nine hundred forty-nine".