197693 has 8 divisors (see below), whose sum is σ = 217080. Its totient is φ = 179200.

The previous prime is 197689. The next prime is 197699. The reversal of 197693 is 396791.

It can be written as a sum of positive squares in 4 ways, for example, as 120409 + 77284 = 347^2 + 278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197693 - 2² = 197689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293 + ... + 693.

It is an arithmetic number, because the mean of its divisors is an integer number (27135).

2¹⁹⁷⁶⁹³ is an apocalyptic number.

It is an amenable number.

197693 is a deficient number, since it is larger than the sum of its proper divisors (19387).

197693 is a wasteful number, since it uses less digits than its factorization.

197693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its digits is 10206, while the sum is 35.

The square root of 197693 is about 444.6268098080. The cubic root of 197693 is about 58.2546276417.

The spelling of 197693 in words is "one hundred ninety-seven thousand, six hundred ninety-three".