197853 has 4 divisors (see below), whose sum is σ = 263808. Its totient is φ = 131900.

The previous prime is 197837. The next prime is 197887. The reversal of 197853 is 358791.

197853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 197853 - 2⁴ = 197837 is a prime.

It is a D-number.

197853 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 197853.

It is not an unprimeable number, because it can be changed into a prime (197803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32973 + ... + 32978.

It is an arithmetic number, because the mean of its divisors is an integer number (65952).

2¹⁹⁷⁸⁵³ is an apocalyptic number.

It is an amenable number.

197853 is a deficient number, since it is larger than the sum of its proper divisors (65955).

197853 is an equidigital number, since it uses as much as digits as its factorization.

197853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65954.

The product of its digits is 7560, while the sum is 33.

The square root of 197853 is about 444.8066995898. The cubic root of 197853 is about 58.2703392535.

The spelling of 197853 in words is "one hundred ninety-seven thousand, eight hundred fifty-three".