3556990 has 32 divisors (see below), whose sum is σ = 6844320. Its totient is φ = 1327104.

The previous prime is 3556981. The next prime is 3556991. The reversal of 3556990 is 996553.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3556991) 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 15 ways as a sum of consecutive naturals, for example, 18334 + ... + 18526.

It is an arithmetic number, because the mean of its divisors is an integer number (213885).

Almost surely, 2^3556990 is an apocalyptic number.

3556990 is a deficient number, since it is larger than the sum of its proper divisors (3287330).

3556990 is a wasteful number, since it uses less digits than its factorization.

3556990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 3556990 is about 1885.9984093312. The cubic root of 3556990 is about 152.6490882765.

The spelling of 3556990 in words is "three million, five hundred fifty-six thousand, nine hundred ninety".