3997682 has 8 divisors (see below), whose sum is σ = 6457836. Its totient is φ = 1845072.

The previous prime is 3997673. The next prime is 3997723. The reversal of 3997682 is 2867993.

It can be written as a sum of positive squares in 2 ways, for example, as 3996001 + 1681 = 1999^2 + 41^2 .

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

It is a super-2 number, since 2×3997682² = 31962922746248, which contains 22 as substring.

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, 76853 + ... + 76904.

Almost surely, 2^3997682 is an apocalyptic number.

3997682 is a deficient number, since it is larger than the sum of its proper divisors (2460154).

3997682 is a wasteful number, since it uses less digits than its factorization.

3997682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153772.

The product of its digits is 163296, while the sum is 44.

The square root of 3997682 is about 1999.4204160206. The cubic root of 3997682 is about 158.7094359748.

The spelling of 3997682 in words is "three million, nine hundred ninety-seven thousand, six hundred eighty-two".