197422 has 4 divisors (see below), whose sum is σ = 296136. Its totient is φ = 98710.

The previous prime is 197419. The next prime is 197423. The reversal of 197422 is 224791.

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

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 as a sum of consecutive naturals, namely, 49354 + ... + 49357.

It is an arithmetic number, because the mean of its divisors is an integer number (74034).

2¹⁹⁷⁴²² is an apocalyptic number.

197422 is the 238-th centered heptagonal number.

197422 is a deficient number, since it is larger than the sum of its proper divisors (98714).

197422 is an equidigital number, since it uses as much as digits as its factorization.

197422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98713.

The product of its digits is 1008, while the sum is 25.

The square root of 197422 is about 444.3219553432. The cubic root of 197422 is about 58.2279967489.

The spelling of 197422 in words is "one hundred ninety-seven thousand, four hundred twenty-two".