5661416 has 8 divisors (see below), whose sum is σ = 10615170. Its totient is φ = 2830704.

The previous prime is 5661401. The next prime is 5661419. The reversal of 5661416 is 6141665.

It can be written as a sum of positive squares in only one way, i.e., 5244100 + 417316 = 2290^2 + 646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×5661416² = 64103262250112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5661419) 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 as a sum of consecutive naturals, namely, 353831 + ... + 353846.

Almost surely, 2^5661416 is an apocalyptic number.

It is an amenable number.

5661416 is a deficient number, since it is larger than the sum of its proper divisors (4953754).

5661416 is a wasteful number, since it uses less digits than its factorization.

5661416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707683 (or 707679 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 5661416 is about 2379.3730266606. The cubic root of 5661416 is about 178.2276261385.

Subtracting 5661416 from its reverse (6141665), we obtain a square (480249 = 693²).

The spelling of 5661416 in words is "five million, six hundred sixty-one thousand, four hundred sixteen".