11849987 has 2 divisors, whose sum is σ = 11849988. Its totient is φ = 11849986.

The previous prime is 11849947. The next prime is 11850001. The reversal of 11849987 is 78994811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11849987 - 2⁶ = 11849923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11849947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5924993 + 5924994.

It is an arithmetic number, because the mean of its divisors is an integer number (5924994).

Almost surely, 2^11849987 is an apocalyptic number.

11849987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11849987 is an equidigital number, since it uses as much as digits as its factorization.

11849987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 47.

The square root of 11849987 is about 3442.3810073843. The cubic root of 11849987 is about 227.9848340687.

It can be divided in two parts, 118 and 49987, that added together give a palindrome (50105).

The spelling of 11849987 in words is "eleven million, eight hundred forty-nine thousand, nine hundred eighty-seven".