3898624 has 36 divisors (see below), whose sum is σ = 7912324. Its totient is φ = 1916928.

The previous prime is 3898619. The next prime is 3898633. The reversal of 3898624 is 4268983.

3898624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1440000 + 2458624 = 1200^2 + 1568^2 .

Its product of digits (82944) is a multiple of the sum of its prime divisors (256).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24754 + ... + 24910.

Almost surely, 2^3898624 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 3898624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3956162).

3898624 is an abundant number, since it is smaller than the sum of its proper divisors (4013700).

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

3898624 is an equidigital number, since it uses as much as digits as its factorization.

3898624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 256 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 3898624 is about 1974.4933527363. The cubic root of 3898624 is about 157.3875774529.

The spelling of 3898624 in words is "three million, eight hundred ninety-eight thousand, six hundred twenty-four".