1066423 has 2 divisors, whose sum is σ = 1066424. Its totient is φ = 1066422.

The previous prime is 1066411. The next prime is 1066433. The reversal of 1066423 is 3246601.

It is a strong prime.

It is an emirp because it is prime and its reverse (3246601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066423 is a prime.

It is a super-2 number, since 2×1066423² = 2274516029858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066394 and 1066403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533211 + 533212.

It is an arithmetic number, because the mean of its divisors is an integer number (533212).

2^1066423 is an apocalyptic number.

1066423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066423 is an equidigital number, since it uses as much as digits as its factorization.

1066423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1066423 is about 1032.6775876332. The cubic root of 1066423 is about 102.1668102239.

The spelling of 1066423 in words is "one million, sixty-six thousand, four hundred twenty-three".