1797241111 has 2 divisors, whose sum is σ = 1797241112. Its totient is φ = 1797241110.

The previous prime is 1797241057. The next prime is 1797241133. The reversal of 1797241111 is 1111427971.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1797241111 - 2¹³ = 1797232919 is a prime.

It is a super-2 number, since 2×1797241111² = 6460151222137028642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1797241181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898620555 + 898620556.

It is an arithmetic number, because the mean of its divisors is an integer number (898620556).

Almost surely, 2^1797241111 is an apocalyptic number.

1797241111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797241111 is an equidigital number, since it uses as much as digits as its factorization.

1797241111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 34.

The square root of 1797241111 is about 42393.8805843485. The cubic root of 1797241111 is about 1215.8185953909.

The spelling of 1797241111 in words is "one billion, seven hundred ninety-seven million, two hundred forty-one thousand, one hundred eleven".