3996436 has 12 divisors (see below), whose sum is σ = 7049728. Its totient is φ = 1982232.

The previous prime is 3996431. The next prime is 3996439. The reversal of 3996436 is 6346993.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3426 + ... + 4441.

Almost surely, 2^3996436 is an apocalyptic number.

It is an amenable number.

3996436 is a deficient number, since it is larger than the sum of its proper divisors (3053292).

3996436 is a wasteful number, since it uses less digits than its factorization.

3996436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7998 (or 7996 counting only the distinct ones).

The product of its digits is 104976, while the sum is 40.

The square root of 3996436 is about 1999.1088014413. The cubic root of 3996436 is about 158.6929453763.

It can be divided in two parts, 39964 and 36, that added together give a square (40000 = 200²).

The spelling of 3996436 in words is "three million, nine hundred ninety-six thousand, four hundred thirty-six".