1066558 has 8 divisors (see below), whose sum is σ = 1608552. Its totient is φ = 530376.

The previous prime is 1066553. The next prime is 1066561. The reversal of 1066558 is 8556601.

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

It is a super-2 number, since 2×1066558² = 2275091934728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960 + ... + 1747.

It is an arithmetic number, because the mean of its divisors is an integer number (201069).

2^1066558 is an apocalyptic number.

1066558 is a deficient number, since it is larger than the sum of its proper divisors (541994).

1066558 is a wasteful number, since it uses less digits than its factorization.

1066558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1066558 is about 1032.7429496249. The cubic root of 1066558 is about 102.1711211892.

The spelling of 1066558 in words is "one million, sixty-six thousand, five hundred fifty-eight".