11427899 has 4 divisors (see below), whose sum is σ = 13060464. Its totient is φ = 9795336.

The previous prime is 11427883. The next prime is 11427901. The reversal of 11427899 is 99872411.

11427899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99872411 = 67 ⋅1490633.

It is a cyclic number.

It is not a de Polignac number, because 11427899 - 2⁴ = 11427883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11427839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816272 + ... + 816285.

It is an arithmetic number, because the mean of its divisors is an integer number (3265116).

Almost surely, 2^11427899 is an apocalyptic number.

11427899 is a deficient number, since it is larger than the sum of its proper divisors (1632565).

11427899 is an equidigital number, since it uses as much as digits as its factorization.

11427899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632564.

The product of its digits is 36288, while the sum is 41.

The square root of 11427899 is about 3380.5175639242. The cubic root of 11427899 is about 225.2451582948.

The spelling of 11427899 in words is "eleven million, four hundred twenty-seven thousand, eight hundred ninety-nine".