3997018 has 8 divisors (see below), whose sum is σ = 6054048. Its totient is φ = 1979004.

The previous prime is 3997003. The next prime is 3997039. The reversal of 3997018 is 8107993.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9496 + ... + 9907.

It is an arithmetic number, because the mean of its divisors is an integer number (756756).

Almost surely, 2^3997018 is an apocalyptic number.

3997018 is a deficient number, since it is larger than the sum of its proper divisors (2057030).

3997018 is a wasteful number, since it uses less digits than its factorization.

3997018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19508.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 3997018 is about 1999.2543610056. The cubic root of 3997018 is about 158.7006484741.

The spelling of 3997018 in words is "three million, nine hundred ninety-seven thousand, eighteen".