5661606 has 8 divisors (see below), whose sum is σ = 11323224. Its totient is φ = 1887200.

The previous prime is 5661589. The next prime is 5661613. The reversal of 5661606 is 6061665.

It is a sphenic number, since it is the product of 3 distinct primes.

5661606 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471795 + ... + 471806.

It is an arithmetic number, because the mean of its divisors is an integer number (1415403).

Almost surely, 2^5661606 is an apocalyptic number.

5661606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5661606 is a wasteful number, since it uses less digits than its factorization.

5661606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943606.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 5661606 is about 2379.4129528100. The cubic root of 5661606 is about 178.2296199194.

The spelling of 5661606 in words is "five million, six hundred sixty-one thousand, six hundred six".