197434 has 4 divisors (see below), whose sum is σ = 296154. Its totient is φ = 98716.

The previous prime is 197423. The next prime is 197441. The reversal of 197434 is 434791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 105625 + 91809 = 325^2 + 303^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49357 + ... + 49360.

2¹⁹⁷⁴³⁴ is an apocalyptic number.

197434 is a deficient number, since it is larger than the sum of its proper divisors (98720).

197434 is an equidigital number, since it uses as much as digits as its factorization.

197434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98719.

The product of its digits is 3024, while the sum is 28.

The square root of 197434 is about 444.3354588596. The cubic root of 197434 is about 58.2291764922.

It can be divided in two parts, 19 and 7434, that multiplied together give a triangular number (141246 = T₅₃₁).

The spelling of 197434 in words is "one hundred ninety-seven thousand, four hundred thirty-four".