11647331 has 2 divisors, whose sum is σ = 11647332. Its totient is φ = 11647330.

The previous prime is 11647327. The next prime is 11647373. The reversal of 11647331 is 13374611.

It is a weak prime.

It is an emirp because it is prime and its reverse (13374611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11647331 - 2² = 11647327 is a prime.

It is a super-2 number, since 2×11647331² = 271320638847122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11647331.

It is not a weakly prime, because it can be changed into another prime (11647301) 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, 5823665 + 5823666.

It is an arithmetic number, because the mean of its divisors is an integer number (5823666).

Almost surely, 2^11647331 is an apocalyptic number.

11647331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11647331 is an equidigital number, since it uses as much as digits as its factorization.

11647331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 11647331 is about 3412.8186298132. The cubic root of 11647331 is about 226.6777044317.

The spelling of 11647331 in words is "eleven million, six hundred forty-seven thousand, three hundred thirty-one".