3857198 has 16 divisors (see below), whose sum is σ = 6277824. Its totient is φ = 1770240.

The previous prime is 3857179. The next prime is 3857207. The reversal of 3857198 is 8917583.

It is a happy number.

It is a super-2 number, since 2×3857198² = 29755952822408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11 + ... + 2777.

It is an arithmetic number, because the mean of its divisors is an integer number (392364).

Almost surely, 2^3857198 is an apocalyptic number.

3857198 is a deficient number, since it is larger than the sum of its proper divisors (2420626).

3857198 is a wasteful number, since it uses less digits than its factorization.

3857198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827.

The product of its digits is 60480, while the sum is 41.

The square root of 3857198 is about 1963.9750507580. The cubic root of 3857198 is about 156.8281349191.

The spelling of 3857198 in words is "three million, eight hundred fifty-seven thousand, one hundred ninety-eight".