1966893 has 8 divisors (see below), whose sum is σ = 2686656. Its totient is φ = 1279200.

The previous prime is 1966889. The next prime is 1966897. The reversal of 1966893 is 3986691.

It is an interprime number because it is at equal distance from previous prime (1966889) and next prime (1966897).

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

It is not a de Polignac number, because 1966893 - 2² = 1966889 is a prime.

1966893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966897) 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, 7873 + ... + 8118.

It is an arithmetic number, because the mean of its divisors is an integer number (335832).

2^1966893 is an apocalyptic number.

It is an amenable number.

1966893 is a deficient number, since it is larger than the sum of its proper divisors (719763).

1966893 is a wasteful number, since it uses less digits than its factorization.

1966893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16035.

The product of its digits is 69984, while the sum is 42.

The square root of 1966893 is about 1402.4596250873. The cubic root of 1966893 is about 125.2930298645.

The spelling of 1966893 in words is "one million, nine hundred sixty-six thousand, eight hundred ninety-three".