11427403 has 4 divisors (see below), whose sum is σ = 12306448. Its totient is φ = 10548360.

The previous prime is 11427401. The next prime is 11427419. The reversal of 11427403 is 30472411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30472411 = 31 ⋅982981.

It is a cyclic number.

It is not a de Polignac number, because 11427403 - 2¹ = 11427401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11427401) 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, 439503 + ... + 439528.

It is an arithmetic number, because the mean of its divisors is an integer number (3076612).

Almost surely, 2^11427403 is an apocalyptic number.

11427403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11427403 is a deficient number, since it is larger than the sum of its proper divisors (879045).

11427403 is an equidigital number, since it uses as much as digits as its factorization.

11427403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879044.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 11427403 is about 3380.4442015806. Note that the first 3 decimals coincide. The cubic root of 11427403 is about 225.2418995093.

Adding to 11427403 its reverse (30472411), we get a palindrome (41899814).

The spelling of 11427403 in words is "eleven million, four hundred twenty-seven thousand, four hundred three".