11987299 has 2 divisors, whose sum is σ = 11987300. Its totient is φ = 11987298.

The previous prime is 11987291. The next prime is 11987323. The reversal of 11987299 is 99278911.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11987299 - 2³ = 11987291 is a prime.

It is not a weakly prime, because it can be changed into another prime (11987291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5993649 + 5993650.

It is an arithmetic number, because the mean of its divisors is an integer number (5993650).

Almost surely, 2^11987299 is an apocalyptic number.

11987299 is a deficient number, since it is larger than the sum of its proper divisors (1).

11987299 is an equidigital number, since it uses as much as digits as its factorization.

11987299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 46.

The square root of 11987299 is about 3462.2678983580. The cubic root of 11987299 is about 228.8620476881.

The spelling of 11987299 in words is "eleven million, nine hundred eighty-seven thousand, two hundred ninety-nine".