1966327 has 4 divisors (see below), whose sum is σ = 2145096. Its totient is φ = 1787560.

The previous prime is 1966303. The next prime is 1966331. The reversal of 1966327 is 7236691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1966327 is a prime.

It is a Duffinian number.

1966327 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1966292 and 1966301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89368 + ... + 89389.

It is an arithmetic number, because the mean of its divisors is an integer number (536274).

2^1966327 is an apocalyptic number.

1966327 is a deficient number, since it is larger than the sum of its proper divisors (178769).

1966327 is a wasteful number, since it uses less digits than its factorization.

1966327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178768.

The product of its digits is 13608, while the sum is 34.

The square root of 1966327 is about 1402.2578222281. The cubic root of 1966327 is about 125.2810104582.

The spelling of 1966327 in words is "one million, nine hundred sixty-six thousand, three hundred twenty-seven".