11783731 has 2 divisors, whose sum is σ = 11783732. Its totient is φ = 11783730.

The previous prime is 11783729. The next prime is 11783741. The reversal of 11783731 is 13738711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11783731 - 2¹ = 11783729 is a prime.

It is a super-2 number, since 2×11783731² = 277712632560722, which contains 22 as substring.

Together with 11783729, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11783693 and 11783702.

It is not a weakly prime, because it can be changed into another prime (11783701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891865 + 5891866.

It is an arithmetic number, because the mean of its divisors is an integer number (5891866).

Almost surely, 2^11783731 is an apocalyptic number.

11783731 is a deficient number, since it is larger than the sum of its proper divisors (1).

11783731 is an equidigital number, since it uses as much as digits as its factorization.

11783731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 31.

The square root of 11783731 is about 3432.7439461748. The cubic root of 11783731 is about 227.5591344889.

The spelling of 11783731 in words is "eleven million, seven hundred eighty-three thousand, seven hundred thirty-one".