3898818 has 96 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 967680.

The previous prime is 3898771. The next prime is 3898841. The reversal of 3898818 is 8188983.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40146 + ... + 40242.

It is an arithmetic number, because the mean of its divisors is an integer number (114660).

Almost surely, 2^3898818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3898818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5503680).

3898818 is an abundant number, since it is smaller than the sum of its proper divisors (7108542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3898818 is a wasteful number, since it uses less digits than its factorization.

3898818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 149 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 3898818 is about 1974.5424786517. The cubic root of 3898818 is about 157.3901880050.

The spelling of 3898818 in words is "three million, eight hundred ninety-eight thousand, eight hundred eighteen".