197491382 has 8 divisors (see below), whose sum is σ = 323167752. Its totient is φ = 89768800.

The previous prime is 197491379. The next prime is 197491403. The reversal of 197491382 is 283194791.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488419 + ... + 4488462.

It is an arithmetic number, because the mean of its divisors is an integer number (40395969).

Almost surely, 2^197491382 is an apocalyptic number.

197491382 is a deficient number, since it is larger than the sum of its proper divisors (125676370).

197491382 is a wasteful number, since it uses less digits than its factorization.

197491382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976894.

The product of its digits is 108864, while the sum is 44.

The square root of 197491382 is about 14053.1627045303. The cubic root of 197491382 is about 582.3481716693.

The spelling of 197491382 in words is "one hundred ninety-seven million, four hundred ninety-one thousand, three hundred eighty-two".