5618819 has 2 divisors, whose sum is σ = 5618820. Its totient is φ = 5618818.

The previous prime is 5618777. The next prime is 5618827. The reversal of 5618819 is 9188165.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5618819 is a prime.

It is a super-2 number, since 2×5618819² = 63142253909522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5618839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809409 + 2809410.

It is an arithmetic number, because the mean of its divisors is an integer number (2809410).

Almost surely, 2^5618819 is an apocalyptic number.

5618819 is a deficient number, since it is larger than the sum of its proper divisors (1).

5618819 is an equidigital number, since it uses as much as digits as its factorization.

5618819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 38.

The square root of 5618819 is about 2370.4048177474. The cubic root of 5618819 is about 177.7795001425.

The spelling of 5618819 in words is "five million, six hundred eighteen thousand, eight hundred nineteen".