1066500 has 96 divisors (see below), whose sum is σ = 3494400. Its totient is φ = 280800.

The previous prime is 1066447. The next prime is 1066511. The reversal of 1066500 is 56601.

1066500 is a `hidden beast` number, since 1 + 0 + 665 + 0 + 0 = 666.

It is a super-2 number, since 2×1066500² = 2274844500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13461 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (36400).

2^1066500 is an apocalyptic number.

1066500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747200).

1066500 is an abundant number, since it is smaller than the sum of its proper divisors (2427900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066500 is a wasteful number, since it uses less digits than its factorization.

1066500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1066500 is about 1032.7148686835. The cubic root of 1066500 is about 102.1692691153.

The spelling of 1066500 in words is "one million, sixty-six thousand, five hundred".