3556872 has 80 divisors (see below), whose sum is σ = 10890000. Its totient is φ = 1075680.

The previous prime is 3556853. The next prime is 3556877. The reversal of 3556872 is 2786553.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (3556877) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6879 + ... + 7377.

It is an arithmetic number, because the mean of its divisors is an integer number (136125).

Almost surely, 2^3556872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3556872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5445000).

3556872 is an abundant number, since it is smaller than the sum of its proper divisors (7333128).

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

3556872 is a wasteful number, since it uses less digits than its factorization.

3556872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 515 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 3556872 is about 1885.9671259065. The cubic root of 3556872 is about 152.6474002583.

It can be divided in two parts, 355 and 6872, that added together give a palindrome (7227).

The spelling of 3556872 in words is "three million, five hundred fifty-six thousand, eight hundred seventy-two".