197455894 has 8 divisors (see below), whose sum is σ = 298315080. Its totient is φ = 98017536.

The previous prime is 197455859. The next prime is 197455913. The reversal of 197455894 is 498554791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354859 + ... + 355414.

It is an arithmetic number, because the mean of its divisors is an integer number (37289385).

Almost surely, 2^197455894 is an apocalyptic number.

197455894 is a deficient number, since it is larger than the sum of its proper divisors (100859186).

197455894 is a wasteful number, since it uses less digits than its factorization.

197455894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710414.

The product of its digits is 1814400, while the sum is 52.

The square root of 197455894 is about 14051.9000138771. The cubic root of 197455894 is about 582.3132881051.

The spelling of 197455894 in words is "one hundred ninety-seven million, four hundred fifty-five thousand, eight hundred ninety-four".