5661798 has 16 divisors (see below), whose sum is σ = 11430720. Its totient is φ = 1869416.

The previous prime is 5661797. The next prime is 5661811. The reversal of 5661798 is 8971665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661797) 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, 3768 + ... + 5051.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^5661798 is an apocalyptic number.

5661798 is an abundant number, since it is smaller than the sum of its proper divisors (5768922).

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

5661798 is a wasteful number, since it uses less digits than its factorization.

5661798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8931.

The product of its digits is 90720, while the sum is 42.

The square root of 5661798 is about 2379.4532985541. The cubic root of 5661798 is about 178.2316346422.

The spelling of 5661798 in words is "five million, six hundred sixty-one thousand, seven hundred ninety-eight".