5683661 has 4 divisors (see below), whose sum is σ = 6018012. Its totient is φ = 5349312.

The previous prime is 5683651. The next prime is 5683673. The reversal of 5683661 is 1663865.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3062500 + 2621161 = 1750^2 + 1619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5683661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5683651) 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, 167150 + ... + 167183.

It is an arithmetic number, because the mean of its divisors is an integer number (1504503).

Almost surely, 2^5683661 is an apocalyptic number.

It is an amenable number.

5683661 is a deficient number, since it is larger than the sum of its proper divisors (334351).

5683661 is a wasteful number, since it uses less digits than its factorization.

5683661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334350.

The product of its digits is 25920, while the sum is 35.

The square root of 5683661 is about 2384.0429945787. The cubic root of 5683661 is about 178.4607534542.

The spelling of 5683661 in words is "five million, six hundred eighty-three thousand, six hundred sixty-one".