197843026 has 4 divisors (see below), whose sum is σ = 296764542. Its totient is φ = 98921512.

The previous prime is 197842993. The next prime is 197843039. The reversal of 197843026 is 620348791.

197843026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 159390625 + 38452401 = 12625^2 + 6201^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 197843026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49460755 + ... + 49460758.

Almost surely, 2^197843026 is an apocalyptic number.

197843026 is a deficient number, since it is larger than the sum of its proper divisors (98921516).

197843026 is an equidigital number, since it uses as much as digits as its factorization.

197843026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98921515.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 197843026 is about 14065.6683453009. The cubic root of 197843026 is about 582.6936007852.

The spelling of 197843026 in words is "one hundred ninety-seven million, eight hundred forty-three thousand, twenty-six".