1968783 has 8 divisors (see below), whose sum is σ = 2681088. Its totient is φ = 1284504.

The previous prime is 1968773. The next prime is 1968797. The reversal of 1968783 is 3878691.

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

It is not a de Polignac number, because 1968783 - 2⁴ = 1968767 is a prime.

It is a super-2 number, since 2×1968783² = 7752213002178, which contains 22 as substring.

1968783 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968773) 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 7 ways as a sum of consecutive naturals, for example, 6841 + ... + 7122.

It is an arithmetic number, because the mean of its divisors is an integer number (335136).

2^1968783 is an apocalyptic number.

1968783 is a deficient number, since it is larger than the sum of its proper divisors (712305).

1968783 is a wasteful number, since it uses less digits than its factorization.

1968783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14013.

The product of its digits is 72576, while the sum is 42.

The square root of 1968783 is about 1403.1332794856. The cubic root of 1968783 is about 125.3331486404. Note that the first 3 decimals are identical.

The spelling of 1968783 in words is "one million, nine hundred sixty-eight thousand, seven hundred eighty-three".