1066537 has 4 divisors (see below), whose sum is σ = 1068880. Its totient is φ = 1064196.

The previous prime is 1066531. The next prime is 1066553. The reversal of 1066537 is 7356601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1066537 - 2⁷ = 1066409 is a prime.

It is a super-2 number, since 2×1066537² = 2275002344738, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243 + ... + 1480.

It is an arithmetic number, because the mean of its divisors is an integer number (267220).

2^1066537 is an apocalyptic number.

It is an amenable number.

1066537 is a deficient number, since it is larger than the sum of its proper divisors (2343).

1066537 is an equidigital number, since it uses as much as digits as its factorization.

1066537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 1066537 is about 1032.7327824757. The cubic root of 1066537 is about 102.1704506185.

Subtracting 1066537 from its reverse (7356601), we obtain a square (6290064 = 2508²).

The spelling of 1066537 in words is "one million, sixty-six thousand, five hundred thirty-seven".