1796489621 has 2 divisors, whose sum is σ = 1796489622. Its totient is φ = 1796489620.

The previous prime is 1796489557. The next prime is 1796489683. The reversal of 1796489621 is 1269846971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1002039025 + 794450596 = 31655^2 + 28186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1796489621 - 2⁶ = 1796489557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1796482621) 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, 898244810 + 898244811.

It is an arithmetic number, because the mean of its divisors is an integer number (898244811).

Almost surely, 2^1796489621 is an apocalyptic number.

It is an amenable number.

1796489621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1796489621 is an equidigital number, since it uses as much as digits as its factorization.

1796489621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 53.

The square root of 1796489621 is about 42385.0164680869. The cubic root of 1796489621 is about 1215.6491128644.

The spelling of 1796489621 in words is "one billion, seven hundred ninety-six million, four hundred eighty-nine thousand, six hundred twenty-one".