818963 has 2 divisors, whose sum is σ = 818964. Its totient is φ = 818962.

The previous prime is 818959. The next prime is 818969. The reversal of 818963 is 369818.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 818963 - 2² = 818959 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 8³ + 1 + 9⁴ + 8³ + 6⁷ + 3¹² .

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 818963.

It is not a weakly prime, because it can be changed into another prime (818969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409481 + 409482.

It is an arithmetic number, because the mean of its divisors is an integer number (409482).

2⁸¹⁸⁹⁶³ is an apocalyptic number.

818963 is a deficient number, since it is larger than the sum of its proper divisors (1).

818963 is an equidigital number, since it uses as much as digits as its factorization.

818963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 818963 is about 904.9657452081. The cubic root of 818963 is about 93.5595434165.

The spelling of 818963 in words is "eight hundred eighteen thousand, nine hundred sixty-three".