5605890 has 32 divisors (see below), whose sum is σ = 13659840. Its totient is φ = 1472064.

The previous prime is 5605877. The next prime is 5605891. The reversal of 5605890 is 985065.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5605891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616 + ... + 3404.

It is an arithmetic number, because the mean of its divisors is an integer number (426870).

Almost surely, 2^5605890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5605890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6829920).

5605890 is an abundant number, since it is smaller than the sum of its proper divisors (8053950).

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

5605890 is a wasteful number, since it uses less digits than its factorization.

5605890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 5605890 is about 2367.6760758178. The cubic root of 5605890 is about 177.6430375165.

The spelling of 5605890 in words is "five million, six hundred five thousand, eight hundred ninety".