397782982 has 8 divisors (see below), whose sum is σ = 596810016. Its totient is φ = 198846312.

The previous prime is 397782977. The next prime is 397782989. The reversal of 397782982 is 289287793.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397782989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10233 + ... + 30004.

It is an arithmetic number, because the mean of its divisors is an integer number (74601252).

Almost surely, 2^397782982 is an apocalyptic number.

397782982 is a deficient number, since it is larger than the sum of its proper divisors (199027034).

397782982 is a wasteful number, since it uses less digits than its factorization.

397782982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45182.

The product of its digits is 3048192, while the sum is 55.

The square root of 397782982 is about 19944.4975369148. The cubic root of 397782982 is about 735.4425163149.

The spelling of 397782982 in words is "three hundred ninety-seven million, seven hundred eighty-two thousand, nine hundred eighty-two".