1797101853 has 4 divisors (see below), whose sum is σ = 2396135808. Its totient is φ = 1198067900.

The previous prime is 1797101843. The next prime is 1797101879. The reversal of 1797101853 is 3581017971.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1797101853 - 2¹⁷ = 1796970781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797101843) 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 in 3 ways as a sum of consecutive naturals, for example, 299516973 + ... + 299516978.

It is an arithmetic number, because the mean of its divisors is an integer number (599033952).

Almost surely, 2^1797101853 is an apocalyptic number.

It is an amenable number.

1797101853 is a deficient number, since it is larger than the sum of its proper divisors (599033955).

1797101853 is an equidigital number, since it uses as much as digits as its factorization.

1797101853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599033954.

The product of its (nonzero) digits is 52920, while the sum is 42.

The square root of 1797101853 is about 42392.2381220902. The cubic root of 1797101853 is about 1215.7871922886.

The spelling of 1797101853 in words is "one billion, seven hundred ninety-seven million, one hundred one thousand, eight hundred fifty-three".