5816638 has 4 divisors (see below), whose sum is σ = 8724960. Its totient is φ = 2908318.

The previous prime is 5816611. The next prime is 5816639. The reversal of 5816638 is 8366185.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8366185 = 5 ⋅1673237.

It is a junction number, because it is equal to n+sod(n) for n = 5816597 and 5816606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5816639) 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, 1454158 + ... + 1454161.

It is an arithmetic number, because the mean of its divisors is an integer number (2181240).

Almost surely, 2^5816638 is an apocalyptic number.

5816638 is a deficient number, since it is larger than the sum of its proper divisors (2908322).

5816638 is a wasteful number, since it uses less digits than its factorization.

5816638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908321.

The product of its digits is 34560, while the sum is 37.

The square root of 5816638 is about 2411.7707187873. The cubic root of 5816638 is about 179.8418157607.

The spelling of 5816638 in words is "five million, eight hundred sixteen thousand, six hundred thirty-eight".