1066931 has 2 divisors, whose sum is σ = 1066932. Its totient is φ = 1066930.

The previous prime is 1066913. The next prime is 1066973. The reversal of 1066931 is 1396601.

Together with previous prime (1066913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1066931 - 2⁶ = 1066867 is a prime.

It is a super-3 number, since 3×1066931³ = 3643596333049897473, which contains 333 as substring. Note that it is a super-d number also for d = 2.

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 1066931.

It is not a weakly prime, because it can be changed into another prime (1066981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533465 + 533466.

It is an arithmetic number, because the mean of its divisors is an integer number (533466).

2^1066931 is an apocalyptic number.

1066931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066931 is an equidigital number, since it uses as much as digits as its factorization.

1066931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1066931 is about 1032.9235208862. The cubic root of 1066931 is about 102.1830303357.

The spelling of 1066931 in words is "one million, sixty-six thousand, nine hundred thirty-one".