1797904573 has 2 divisors, whose sum is σ = 1797904574. Its totient is φ = 1797904572.

The previous prime is 1797904501. The next prime is 1797904579. The reversal of 1797904573 is 3754097971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 901620729 + 896283844 = 30027^2 + 29938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1797904573 - 2²⁹ = 1261033661 is a prime.

It is a super-2 number, since 2×1797904573² = 6464921707228624658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1797904573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1797904579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898952286 + 898952287.

It is an arithmetic number, because the mean of its divisors is an integer number (898952287).

Almost surely, 2^1797904573 is an apocalyptic number.

It is an amenable number.

1797904573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797904573 is an equidigital number, since it uses as much as digits as its factorization.

1797904573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1666980, while the sum is 52.

The square root of 1797904573 is about 42401.7048360087. The cubic root of 1797904573 is about 1215.9681858182.

The spelling of 1797904573 in words is "one billion, seven hundred ninety-seven million, nine hundred four thousand, five hundred seventy-three".