84001823 has 2 divisors, whose sum is σ = 84001824. Its totient is φ = 84001822.

The previous prime is 84001817. The next prime is 84001837. The reversal of 84001823 is 32810048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84001823 - 2⁶ = 84001759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84001792 and 84001801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84000823) 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, 42000911 + 42000912.

It is an arithmetic number, because the mean of its divisors is an integer number (42000912).

Almost surely, 2^84001823 is an apocalyptic number.

84001823 is a deficient number, since it is larger than the sum of its proper divisors (1).

84001823 is an equidigital number, since it uses as much as digits as its factorization.

84001823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 84001823 is about 9165.2508421756. The cubic root of 84001823 is about 437.9550821656.

The spelling of 84001823 in words is "eighty-four million, one thousand, eight hundred twenty-three".