1066393 has 8 divisors (see below), whose sum is σ = 1139400. Its totient is φ = 994560.

The previous prime is 1066379. The next prime is 1066399. The reversal of 1066393 is 3936601.

It can be written as a sum of positive squares in 4 ways, for example, as 1369 + 1065024 = 37^2 + 1032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066393 is a prime.

It is a super-2 number, since 2×1066393² = 2274388060898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2323 + ... + 2743.

It is an arithmetic number, because the mean of its divisors is an integer number (142425).

2^1066393 is an apocalyptic number.

It is an amenable number.

1066393 is a deficient number, since it is larger than the sum of its proper divisors (73007).

1066393 is a wasteful number, since it uses less digits than its factorization.

1066393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 1066393 is about 1032.6630621844. The cubic root of 1066393 is about 102.1658521822.

The spelling of 1066393 in words is "one million, sixty-six thousand, three hundred ninety-three".