3898944 has 84 divisors (see below), whose sum is σ = 12785344. Its totient is φ = 1112832.

The previous prime is 3898943. The next prime is 3898957. The reversal of 3898944 is 4498983.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3898944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3549 + ... + 4515.

Almost surely, 2^3898944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3898944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6392672).

3898944 is an abundant number, since it is smaller than the sum of its proper divisors (8886400).

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

3898944 is a wasteful number, since it uses less digits than its factorization.

3898944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 979 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 3898944 is about 1974.5743845194. The cubic root of 3898944 is about 157.3918834719.

The spelling of 3898944 in words is "three million, eight hundred ninety-eight thousand, nine hundred forty-four".