197493 has 4 divisors (see below), whose sum is σ = 263328. Its totient is φ = 131660.

The previous prime is 197479. The next prime is 197507. The reversal of 197493 is 394791.

197493 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 an interprime number because it is at equal distance from previous prime (197479) and next prime (197507).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197493 is a prime.

It is a D-number.

It is a Curzon number.

197493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197423) 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, 32913 + ... + 32918.

It is an arithmetic number, because the mean of its divisors is an integer number (65832).

2¹⁹⁷⁴⁹³ is an apocalyptic number.

It is an amenable number.

197493 is a deficient number, since it is larger than the sum of its proper divisors (65835).

197493 is an equidigital number, since it uses as much as digits as its factorization.

197493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65834.

The product of its digits is 6804, while the sum is 33.

The square root of 197493 is about 444.4018451807. The cubic root of 197493 is about 58.2349762012.

The spelling of 197493 in words is "one hundred ninety-seven thousand, four hundred ninety-three".