3997198 has 8 divisors (see below), whose sum is σ = 6043392. Its totient is φ = 1982736.

The previous prime is 3997181. The next prime is 3997211. The reversal of 3997198 is 8917993.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7615 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (755424).

Almost surely, 2^3997198 is an apocalyptic number.

3997198 is a deficient number, since it is larger than the sum of its proper divisors (2046194).

3997198 is a wasteful number, since it uses less digits than its factorization.

3997198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15866.

The product of its digits is 122472, while the sum is 46.

The square root of 3997198 is about 1999.2993772820. The cubic root of 3997198 is about 158.7030307240.

The spelling of 3997198 in words is "three million, nine hundred ninety-seven thousand, one hundred ninety-eight".