11903427 has 24 divisors (see below), whose sum is σ = 18111600. Its totient is φ = 7522368.

The previous prime is 11903413. The next prime is 11903431. The reversal of 11903427 is 72430911.

11903427 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11903427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11903427.

It is not an unprimeable number, because it can be changed into a prime (11903447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15013 + ... + 15785.

It is an arithmetic number, because the mean of its divisors is an integer number (754650).

Almost surely, 2^11903427 is an apocalyptic number.

11903427 is a deficient number, since it is larger than the sum of its proper divisors (6208173).

11903427 is a wasteful number, since it uses less digits than its factorization.

11903427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11903427 is about 3450.1343452103. The cubic root of 11903427 is about 228.3270353044.

The spelling of 11903427 in words is "eleven million, nine hundred three thousand, four hundred twenty-seven".