3556998 has 24 divisors (see below), whose sum is σ = 7815288. Its totient is φ = 1168992.

The previous prime is 3556991. The next prime is 3556999. The reversal of 3556998 is 8996553.

3556998 is a `hidden beast` number, since 3 + 556 + 9 + 98 = 666.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40 + ... + 2667.

It is an arithmetic number, because the mean of its divisors is an integer number (325637).

Almost surely, 2^3556998 is an apocalyptic number.

3556998 is an abundant number, since it is smaller than the sum of its proper divisors (4258290).

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

3556998 is a wasteful number, since it uses less digits than its factorization.

3556998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788 (or 2785 counting only the distinct ones).

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

The square root of 3556998 is about 1886.0005302226. Note that the first 3 decimals coincide. The cubic root of 3556998 is about 152.6492027170.

It can be divided in two parts, 3556 and 998, that added together give a palindrome (4554).

The spelling of 3556998 in words is "three million, five hundred fifty-six thousand, nine hundred ninety-eight".