800117623 has 2 divisors, whose sum is σ = 800117624. Its totient is φ = 800117622.

The previous prime is 800117621. The next prime is 800117651. The reversal of 800117623 is 326711008.

It is an a-pointer prime, because the next prime (800117651) can be obtained adding 800117623 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 800117623 - 2¹ = 800117621 is a prime.

Together with 800117621, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 800117591 and 800117600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800117621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400058811 + 400058812.

It is an arithmetic number, because the mean of its divisors is an integer number (400058812).

Almost surely, 2^800117623 is an apocalyptic number.

800117623 is a deficient number, since it is larger than the sum of its proper divisors (1).

800117623 is an equidigital number, since it uses as much as digits as its factorization.

800117623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 800117623 is about 28286.3504715614. The cubic root of 800117623 is about 928.3632609599.

The spelling of 800117623 in words is "eight hundred million, one hundred seventeen thousand, six hundred twenty-three".