1066407 has 8 divisors (see below), whose sum is σ = 1427184. Its totient is φ = 708288.

The previous prime is 1066399. The next prime is 1066409. The reversal of 1066407 is 7046601.

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

It is not a de Polignac number, because 1066407 - 2³ = 1066399 is a prime.

It is a super-2 number, since 2×1066407² = 2274447779298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643 + ... + 1595.

It is an arithmetic number, because the mean of its divisors is an integer number (178398).

2^1066407 is an apocalyptic number.

1066407 is a deficient number, since it is larger than the sum of its proper divisors (360777).

1066407 is an equidigital number, since it uses as much as digits as its factorization.

1066407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1066407 is about 1032.6698407526. The cubic root of 1066407 is about 102.1662992706.

The spelling of 1066407 in words is "one million, sixty-six thousand, four hundred seven".