197874461 has 4 divisors (see below), whose sum is σ = 197920800. Its totient is φ = 197828124.

The previous prime is 197874437. The next prime is 197874499. The reversal of 197874461 is 164478791.

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 197874461 - 2¹⁰ = 197873437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197874161) 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, 16031 + ... + 25548.

It is an arithmetic number, because the mean of its divisors is an integer number (49480200).

Almost surely, 2^197874461 is an apocalyptic number.

It is an amenable number.

197874461 is a deficient number, since it is larger than the sum of its proper divisors (46339).

197874461 is an equidigital number, since it uses as much as digits as its factorization.

197874461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46338.

The product of its digits is 338688, while the sum is 47.

The square root of 197874461 is about 14066.7857380426. The cubic root of 197874461 is about 582.7244602729.

The spelling of 197874461 in words is "one hundred ninety-seven million, eight hundred seventy-four thousand, four hundred sixty-one".