3898432 has 14 divisors (see below), whose sum is σ = 7736078. Its totient is φ = 1949184.

The previous prime is 3898421. The next prime is 3898451. The reversal of 3898432 is 2348983.

3898432 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 only one way, i.e., 2005056 + 1893376 = 1416^2 + 1376^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3898391 and 3898400.

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 as a sum of consecutive naturals, namely, 30393 + ... + 30520.

It is an arithmetic number, because the mean of its divisors is an integer number (552577).

Almost surely, 2^3898432 is an apocalyptic number.

3898432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3898432 is a deficient number, since it is larger than the sum of its proper divisors (3837646).

3898432 is an equidigital number, since it uses as much as digits as its factorization.

3898432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60925 (or 60915 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 3898432 is about 1974.4447320703. Note that the first 3 decimals coincide. The cubic root of 3898432 is about 157.3849937284.

The spelling of 3898432 in words is "three million, eight hundred ninety-eight thousand, four hundred thirty-two".