5661117 has 48 divisors (see below), whose sum is σ = 10670400. Its totient is φ = 2933280.

The previous prime is 5661113. The next prime is 5661121. The reversal of 5661117 is 7111665.

It is an interprime number because it is at equal distance from previous prime (5661113) and next prime (5661121).

It is not a de Polignac number, because 5661117 - 2² = 5661113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

5661117 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14359 + ... + 14747.

It is an arithmetic number, because the mean of its divisors is an integer number (222300).

Almost surely, 2^5661117 is an apocalyptic number.

It is an amenable number.

5661117 is a deficient number, since it is larger than the sum of its proper divisors (5009283).

5661117 is a wasteful number, since it uses less digits than its factorization.

5661117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 410 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 5661117 is about 2379.3101941529. The cubic root of 5661117 is about 178.2244884665.

It can be divided in two parts, 5661 and 117, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 5661117 in words is "five million, six hundred sixty-one thousand, one hundred seventeen".