3996726 has 16 divisors (see below), whose sum is σ = 8414400. Its totient is φ = 1262088.

The previous prime is 3996653. The next prime is 3996743. The reversal of 3996726 is 6276993.

It is an Ulam number.

It is a congruent 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, 17416 + ... + 17643.

It is an arithmetic number, because the mean of its divisors is an integer number (525900).

Almost surely, 2^3996726 is an apocalyptic number.

3996726 is an abundant number, since it is smaller than the sum of its proper divisors (4417674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3996726 is a wasteful number, since it uses less digits than its factorization.

3996726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35083.

The product of its digits is 122472, while the sum is 42.

The square root of 3996726 is about 1999.1813324459. The cubic root of 3996726 is about 158.6967837831.

It can be divided in two parts, 39967 and 26, that added together give a palindrome (39993).

The spelling of 3996726 in words is "three million, nine hundred ninety-six thousand, seven hundred twenty-six".