11399427 has 32 divisors (see below), whose sum is σ = 18600960. Its totient is φ = 6855840.

The previous prime is 11399389. The next prime is 11399471. The reversal of 11399427 is 72499311.

11399427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11399427 - 2⁶ = 11399363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11399391 and 11399400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11399527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16152 + ... + 16842.

It is an arithmetic number, because the mean of its divisors is an integer number (581280).

Almost surely, 2^11399427 is an apocalyptic number.

11399427 is a deficient number, since it is larger than the sum of its proper divisors (7201533).

11399427 is a wasteful number, since it uses less digits than its factorization.

11399427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 754 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 11399427 is about 3376.3037481838. The cubic root of 11399427 is about 225.0579406338.

The spelling of 11399427 in words is "eleven million, three hundred ninety-nine thousand, four hundred twenty-seven".