1996453 has 2 divisors, whose sum is σ = 1996454. Its totient is φ = 1996452.

The previous prime is 1996439. The next prime is 1996459. The reversal of 1996453 is 3546991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1723969 + 272484 = 1313^2 + 522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1996453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998226 + 998227.

It is an arithmetic number, because the mean of its divisors is an integer number (998227).

2^1996453 is an apocalyptic number.

It is an amenable number.

1996453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996453 is an equidigital number, since it uses as much as digits as its factorization.

1996453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 37.

The square root of 1996453 is about 1412.9589519869. The cubic root of 1996453 is about 125.9175785818.

The spelling of 1996453 in words is "one million, nine hundred ninety-six thousand, four hundred fifty-three".