3997558 has 8 divisors (see below), whose sum is σ = 6072480. Its totient is φ = 1973400.

The previous prime is 3997549. The next prime is 3997559. The reversal of 3997558 is 8557993.

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 (3997559) by changing a digit.

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, 12493 + ... + 12808.

It is an arithmetic number, because the mean of its divisors is an integer number (759060).

Almost surely, 2^3997558 is an apocalyptic number.

3997558 is a deficient number, since it is larger than the sum of its proper divisors (2074922).

3997558 is a wasteful number, since it uses less digits than its factorization.

3997558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25382.

The product of its digits is 340200, while the sum is 46.

The square root of 3997558 is about 1999.3894067940. The cubic root of 3997558 is about 158.7077950094.

The spelling of 3997558 in words is "three million, nine hundred ninety-seven thousand, five hundred fifty-eight".