11631427 has 2 divisors, whose sum is σ = 11631428. Its totient is φ = 11631426.

The previous prime is 11631409. The next prime is 11631443. The reversal of 11631427 is 72413611.

It is a strong prime.

It is an emirp because it is prime and its reverse (72413611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11631427 is a prime.

It is not a weakly prime, because it can be changed into another prime (11631467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5815713 + 5815714.

It is an arithmetic number, because the mean of its divisors is an integer number (5815714).

Almost surely, 2^11631427 is an apocalyptic number.

11631427 is a deficient number, since it is larger than the sum of its proper divisors (1).

11631427 is an equidigital number, since it uses as much as digits as its factorization.

11631427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 11631427 is about 3410.4877950229. The cubic root of 11631427 is about 226.5744840938.

The spelling of 11631427 in words is "eleven million, six hundred thirty-one thousand, four hundred twenty-seven".