1790074661 has 2 divisors, whose sum is σ = 1790074662. Its totient is φ = 1790074660.

The previous prime is 1790074603. The next prime is 1790074669. The reversal of 1790074661 is 1664700971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010604100 + 779470561 = 31790^2 + 27919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1790074661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1790074669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895037330 + 895037331.

It is an arithmetic number, because the mean of its divisors is an integer number (895037331).

Almost surely, 2^1790074661 is an apocalyptic number.

It is an amenable number.

1790074661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1790074661 is an equidigital number, since it uses as much as digits as its factorization.

1790074661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 1790074661 is about 42309.2739361006. The cubic root of 1790074661 is about 1214.2004281659.

The spelling of 1790074661 in words is "one billion, seven hundred ninety million, seventy-four thousand, six hundred sixty-one".