418819 has 2 divisors, whose sum is σ = 418820. Its totient is φ = 418818.

The previous prime is 418813. The next prime is 418837. The reversal of 418819 is 918814.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 418819 - 2³ = 418811 is a prime.

It is a super-2 number, since 2×418819² = 350818709522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (418811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209409 + 209410.

It is an arithmetic number, because the mean of its divisors is an integer number (209410).

2⁴¹⁸⁸¹⁹ is an apocalyptic number.

418819 is a deficient number, since it is larger than the sum of its proper divisors (1).

418819 is an equidigital number, since it uses as much as digits as its factorization.

418819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 31.

The square root of 418819 is about 647.1622671324. The cubic root of 418819 is about 74.8184646571.

The spelling of 418819 in words is "four hundred eighteen thousand, eight hundred nineteen".