11383987 has 2 divisors, whose sum is σ = 11383988. Its totient is φ = 11383986.

The previous prime is 11383963. The next prime is 11383993. The reversal of 11383987 is 78938311.

It is a strong prime.

It is an emirp because it is prime and its reverse (78938311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11383987 - 2²³ = 2995379 is a prime.

It is not a weakly prime, because it can be changed into another prime (11383997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5691993 + 5691994.

It is an arithmetic number, because the mean of its divisors is an integer number (5691994).

Almost surely, 2^11383987 is an apocalyptic number.

11383987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11383987 is an equidigital number, since it uses as much as digits as its factorization.

11383987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 11383987 is about 3374.0164492782. The cubic root of 11383987 is about 224.9562845111.

It can be divided in two parts, 113 and 83987, that added together give a square (84100 = 290²).

The spelling of 11383987 in words is "eleven million, three hundred eighty-three thousand, nine hundred eighty-seven".