5661017 has 8 divisors (see below), whose sum is σ = 6057576. Its totient is φ = 5271552.

The previous prime is 5661001. The next prime is 5661041. The reversal of 5661017 is 7101665.

5661017 = T₁₃₈ + T₁₃₉ + ... + T₃₃₁.

It can be written as a sum of positive squares in 4 ways, for example, as 978121 + 4682896 = 989^2 + 2164^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5661017 - 2⁴ = 5661001 is a prime.

It is a super-2 number, since 2×5661017² = 64094226948578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5661067) 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, 68 + ... + 3365.

It is an arithmetic number, because the mean of its divisors is an integer number (757197).

Almost surely, 2^5661017 is an apocalyptic number.

It is an amenable number.

5661017 is a deficient number, since it is larger than the sum of its proper divisors (396559).

5661017 is a wasteful number, since it uses less digits than its factorization.

5661017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 5661017 is about 2379.2891795660. The cubic root of 5661017 is about 178.2234390532.

The spelling of 5661017 in words is "five million, six hundred sixty-one thousand, seventeen".