5166638 has 8 divisors (see below), whose sum is σ = 7865832. Its totient is φ = 2544696.

The previous prime is 5166631. The next prime is 5166647. The reversal of 5166638 is 8366615.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5166598 and 5166607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166631) 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 3 ways as a sum of consecutive naturals, for example, 19145 + ... + 19412.

It is an arithmetic number, because the mean of its divisors is an integer number (983229).

Almost surely, 2^5166638 is an apocalyptic number.

5166638 is a deficient number, since it is larger than the sum of its proper divisors (2699194).

5166638 is a wasteful number, since it uses less digits than its factorization.

5166638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38626.

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

The square root of 5166638 is about 2273.0239769963. The cubic root of 5166638 is about 172.8765198582.

The spelling of 5166638 in words is "five million, one hundred sixty-six thousand, six hundred thirty-eight".