1066505 has 8 divisors (see below), whose sum is σ = 1396224. Its totient is φ = 775600.

The previous prime is 1066447. The next prime is 1066511. The reversal of 1066505 is 5056601.

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

It is not a de Polignac number, because 1066505 - 2¹² = 1062409 is a prime.

It is a super-2 number, since 2×1066505² = 2274865830050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9641 + ... + 9750.

It is an arithmetic number, because the mean of its divisors is an integer number (174528).

2^1066505 is an apocalyptic number.

It is an amenable number.

1066505 is a deficient number, since it is larger than the sum of its proper divisors (329719).

1066505 is a wasteful number, since it uses less digits than its factorization.

1066505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19407.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1066505 is about 1032.7172894844. The cubic root of 1066505 is about 102.1694287795.

The spelling of 1066505 in words is "one million, sixty-six thousand, five hundred five".