1996723 has 2 divisors, whose sum is σ = 1996724. Its totient is φ = 1996722.

The previous prime is 1996721. The next prime is 1996739. The reversal of 1996723 is 3276991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1996723 - 2¹ = 1996721 is a prime.

Together with 1996721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1996721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998361 + 998362.

It is an arithmetic number, because the mean of its divisors is an integer number (998362).

2^1996723 is an apocalyptic number.

1996723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996723 is an equidigital number, since it uses as much as digits as its factorization.

1996723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 37.

The square root of 1996723 is about 1413.0544929337. The cubic root of 1996723 is about 125.9232546840.

The spelling of 1996723 in words is "one million, nine hundred ninety-six thousand, seven hundred twenty-three".