618799 has 2 divisors, whose sum is σ = 618800. Its totient is φ = 618798.

The previous prime is 618719. The next prime is 618823. The reversal of 618799 is 997816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 618799 - 2⁷ = 618671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618719) 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, 309399 + 309400.

It is an arithmetic number, because the mean of its divisors is an integer number (309400).

2⁶¹⁸⁷⁹⁹ is an apocalyptic number.

618799 is a deficient number, since it is larger than the sum of its proper divisors (1).

618799 is an equidigital number, since it uses as much as digits as its factorization.

618799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 40.

The square root of 618799 is about 786.6377819556. The cubic root of 618799 is about 85.2150953732.

The spelling of 618799 in words is "six hundred eighteen thousand, seven hundred ninety-nine".