3561896 has 32 divisors (see below), whose sum is σ = 7446600. Its totient is φ = 1585920.

The previous prime is 3561893. The next prime is 3561907. The reversal of 3561896 is 6981653.

3561896 = 283² + 284² + ... + 321².

3561896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3189796 + 372100 = 1786^2 + 610^2 .

It is a super-2 number, since 2×3561896² = 25374206229632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2426 + ... + 3606.

Almost surely, 2^3561896 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 3561896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3723300).

3561896 is an abundant number, since it is smaller than the sum of its proper divisors (3884704).

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

3561896 is a wasteful number, since it uses less digits than its factorization.

3561896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1225 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 3561896 is about 1887.2985985265. The cubic root of 3561896 is about 152.7192367620.

The spelling of 3561896 in words is "three million, five hundred sixty-one thousand, eight hundred ninety-six".