11887387 has 2 divisors, whose sum is σ = 11887388. Its totient is φ = 11887386.

The previous prime is 11887373. The next prime is 11887429. The reversal of 11887387 is 78378811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11887387 is a prime.

It is not a weakly prime, because it can be changed into another prime (11887357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5943693 + 5943694.

It is an arithmetic number, because the mean of its divisors is an integer number (5943694).

Almost surely, 2^11887387 is an apocalyptic number.

11887387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11887387 is an equidigital number, since it uses as much as digits as its factorization.

11887387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 43.

The square root of 11887387 is about 3447.8090144322. The cubic root of 11887387 is about 228.2244314659.

The spelling of 11887387 in words is "eleven million, eight hundred eighty-seven thousand, three hundred eighty-seven".