1066605 has 16 divisors (see below), whose sum is σ = 1719744. Its totient is φ = 564480.

The previous prime is 1066577. The next prime is 1066619. The reversal of 1066605 is 5066601.

It is not a de Polignac number, because 1066605 - 2¹⁶ = 1001069 is a prime.

It is a super-2 number, since 2×1066605² = 2275292452050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2997 + ... + 3333.

It is an arithmetic number, because the mean of its divisors is an integer number (107484).

2^1066605 is an apocalyptic number.

1066605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066605 is a deficient number, since it is larger than the sum of its proper divisors (653139).

1066605 is a wasteful number, since it uses less digits than its factorization.

1066605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1066605 is about 1032.7657043105. The cubic root of 1066605 is about 102.1726219583.

The spelling of 1066605 in words is "one million, sixty-six thousand, six hundred five".