3998528 has 14 divisors (see below), whose sum is σ = 7934706. Its totient is φ = 1999232.

The previous prime is 3998521. The next prime is 3998537. The reversal of 3998528 is 8258993.

It can be written as a sum of positive squares in only one way, i.e., 2849344 + 1149184 = 1688^2 + 1072^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31175 + ... + 31302.

Almost surely, 2^3998528 is an apocalyptic number.

It is an amenable number.

3998528 is a deficient number, since it is larger than the sum of its proper divisors (3936178).

3998528 is an equidigital number, since it uses as much as digits as its factorization.

3998528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62489 (or 62479 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 3998528 is about 1999.6319661378. The cubic root of 3998528 is about 158.7206306882.

The spelling of 3998528 in words is "three million, nine hundred ninety-eight thousand, five hundred twenty-eight".