3996530 has 16 divisors (see below), whose sum is σ = 7617240. Its totient is φ = 1504512.

The previous prime is 3996529. The next prime is 3996541. The reversal of 3996530 is 356993.

It can be written as a sum of positive squares in 4 ways, for example, as 3996001 + 529 = 1999^2 + 23^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11585 + ... + 11924.

Almost surely, 2^3996530 is an apocalyptic number.

3996530 is a deficient number, since it is larger than the sum of its proper divisors (3620710).

3996530 is a wasteful number, since it uses less digits than its factorization.

3996530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23533.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 3996530 is about 1999.1323117793. The cubic root of 3996530 is about 158.6941895699.

It can be divided in two parts, 39 and 96530, that added together give a palindrome (96569).

The spelling of 3996530 in words is "three million, nine hundred ninety-six thousand, five hundred thirty".