11660731 has 2 divisors, whose sum is σ = 11660732. Its totient is φ = 11660730.

The previous prime is 11660729. The next prime is 11660749. The reversal of 11660731 is 13706611.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (13706611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11660731 - 2¹ = 11660729 is a prime.

It is a super-2 number, since 2×11660731² = 271945294908722, which contains 22 as substring.

Together with 11660729, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11660696 and 11660705.

It is not a weakly prime, because it can be changed into another prime (11660771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830365 + 5830366.

It is an arithmetic number, because the mean of its divisors is an integer number (5830366).

Almost surely, 2^11660731 is an apocalyptic number.

11660731 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660731 is an equidigital number, since it uses as much as digits as its factorization.

11660731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11660731 is about 3414.7812521449. The cubic root of 11660731 is about 226.7646003661.

The spelling of 11660731 in words is "eleven million, six hundred sixty thousand, seven hundred thirty-one".