5646169 has 4 divisors (see below), whose sum is σ = 5650996. Its totient is φ = 5641344.

The previous prime is 5646131. The next prime is 5646229. The reversal of 5646169 is 9616465.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9616465 = 5 ⋅1923293.

It can be written as a sum of positive squares in 2 ways, for example, as 3196944 + 2449225 = 1788^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 5646169 - 2⁹ = 5645657 is a prime.

It is a super-2 number, since 2×5646169² = 63758448753122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5646119) 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, 577 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (1412749).

Almost surely, 2^5646169 is an apocalyptic number.

It is an amenable number.

5646169 is a deficient number, since it is larger than the sum of its proper divisors (4827).

5646169 is a wasteful number, since it uses less digits than its factorization.

5646169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826.

The product of its digits is 38880, while the sum is 37.

The square root of 5646169 is about 2376.1668712445. The cubic root of 5646169 is about 178.0674848267.

It can be divided in two parts, 56 and 46169, that added together give a square (46225 = 215²).

The spelling of 5646169 in words is "five million, six hundred forty-six thousand, one hundred sixty-nine".