3561544 has 16 divisors (see below), whose sum is σ = 7632000. Its totient is φ = 1526352.

The previous prime is 3561541. The next prime is 3561581. The reversal of 3561544 is 4451653.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3561541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31744 + ... + 31855.

It is an arithmetic number, because the mean of its divisors is an integer number (477000).

Almost surely, 2^3561544 is an apocalyptic number.

It is an amenable number.

3561544 is an abundant number, since it is smaller than the sum of its proper divisors (4070456).

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

3561544 is a wasteful number, since it uses less digits than its factorization.

3561544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63612 (or 63608 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 3561544 is about 1887.2053412387. The cubic root of 3561544 is about 152.7142058325.

The spelling of 3561544 in words is "three million, five hundred sixty-one thousand, five hundred forty-four".