197874 has 12 divisors (see below), whose sum is σ = 428766. Its totient is φ = 65952.

The previous prime is 197837. The next prime is 197887. The reversal of 197874 is 478791.

It can be written as a sum of positive squares in only one way, i.e., 189225 + 8649 = 435^2 + 93^2 .

It is an Ulam number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 197874.

It is an unprimeable number.

197874 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5479 + ... + 5514.

2¹⁹⁷⁸⁷⁴ is an apocalyptic number.

197874 is an abundant number, since it is smaller than the sum of its proper divisors (230892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197874 is a wasteful number, since it uses less digits than its factorization.

197874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001 (or 10998 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 197874 is about 444.8303047230. The cubic root of 197874 is about 58.2724007737.

It can be divided in two parts, 19787 and 4, that added together give a palindrome (19791).

The spelling of 197874 in words is "one hundred ninety-seven thousand, eight hundred seventy-four".