3553872 has 60 divisors (see below), whose sum is σ = 10686816. Its totient is φ = 1014720.

The previous prime is 3553853. The next prime is 3553877. The reversal of 3553872 is 2783553.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3553877) 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, 1597 + ... + 3107.

Almost surely, 2^3553872 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 3553872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5343408).

3553872 is an abundant number, since it is smaller than the sum of its proper divisors (7132944).

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

3553872 is a wasteful number, since it uses less digits than its factorization.

3553872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536 (or 1523 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 3553872 is about 1885.1716102254. The cubic root of 3553872 is about 152.6044719953.

The spelling of 3553872 in words is "three million, five hundred fifty-three thousand, eight hundred seventy-two".