3998536 has 16 divisors (see below), whose sum is σ = 7938540. Its totient is φ = 1881600.

The previous prime is 3998521. The next prime is 3998537. The reversal of 3998536 is 6358993.

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 22500 = 1994^2 + 150^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3998492 and 3998501.

It is not an unprimeable number, because it can be changed into a prime (3998537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14565 + ... + 14836.

Almost surely, 2^3998536 is an apocalyptic number.

It is an amenable number.

3998536 is a deficient number, since it is larger than the sum of its proper divisors (3940004).

3998536 is a wasteful number, since it uses less digits than its factorization.

3998536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29424 (or 29420 counting only the distinct ones).

The product of its digits is 174960, while the sum is 43.

The square root of 3998536 is about 1999.6339665049. The cubic root of 3998536 is about 158.7207365408.

The spelling of 3998536 in words is "three million, nine hundred ninety-eight thousand, five hundred thirty-six".