84327823 has 16 divisors (see below), whose sum is σ = 88905600. Its totient is φ = 79911936.

The previous prime is 84327811. The next prime is 84327827. The reversal of 84327823 is 32872348.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 84327823 - 2⁹ = 84327311 is a prime.

It is a super-2 number, since 2×84327823² = 14222363463838658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84327827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241453 + ... + 241801.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^84327823 is an apocalyptic number.

84327823 is a deficient number, since it is larger than the sum of its proper divisors (4577777).

84327823 is a wasteful number, since it uses less digits than its factorization.

84327823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

The product of its digits is 64512, while the sum is 37.

The square root of 84327823 is about 9183.0181857601. The cubic root of 84327823 is about 438.5208994857.

The spelling of 84327823 in words is "eighty-four million, three hundred twenty-seven thousand, eight hundred twenty-three".