3996558 has 24 divisors (see below), whose sum is σ = 8704800. Its totient is φ = 1325184.

The previous prime is 3996541. The next prime is 3996569. The reversal of 3996558 is 8556993.

3996558 is a `hidden beast` number, since 3 + 9 + 96 + 558 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3838 + ... + 4766.

It is an arithmetic number, because the mean of its divisors is an integer number (362700).

Almost surely, 2^3996558 is an apocalyptic number.

3996558 is an abundant number, since it is smaller than the sum of its proper divisors (4708242).

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

3996558 is a wasteful number, since it uses less digits than its factorization.

3996558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1173 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 3996558 is about 1999.1393148052. The cubic root of 3996558 is about 158.6945601770.

It can be divided in two parts, 3996 and 558, that added together give a palindrome (4554).

The spelling of 3996558 in words is "three million, nine hundred ninety-six thousand, five hundred fifty-eight".