1793949491 has 2 divisors, whose sum is σ = 1793949492. Its totient is φ = 1793949490.

The previous prime is 1793949461. The next prime is 1793949499. The reversal of 1793949491 is 1949493971.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1793949491 - 2¹⁰ = 1793948467 is a prime.

It is a super-3 number, since 3×1793949491³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1793949499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 896974745 + 896974746.

It is an arithmetic number, because the mean of its divisors is an integer number (896974746).

Almost surely, 2^1793949491 is an apocalyptic number.

1793949491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1793949491 is an equidigital number, since it uses as much as digits as its factorization.

1793949491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 56.

The square root of 1793949491 is about 42355.0409160468. The cubic root of 1793949491 is about 1215.0758906460.

The spelling of 1793949491 in words is "one billion, seven hundred ninety-three million, nine hundred forty-nine thousand, four hundred ninety-one".