84424831 has 8 divisors (see below), whose sum is σ = 86353344. Its totient is φ = 82501920.

The previous prime is 84424807. The next prime is 84424883. The reversal of 84424831 is 13842448.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84424831 - 2⁵ = 84424799 is a prime.

It is a super-2 number, since 2×84424831² = 14255104178757122, 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 (84424801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49021 + ... + 50713.

It is an arithmetic number, because the mean of its divisors is an integer number (10794168).

Almost surely, 2^84424831 is an apocalyptic number.

84424831 is a deficient number, since it is larger than the sum of its proper divisors (1928513).

84424831 is a wasteful number, since it uses less digits than its factorization.

84424831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801.

The product of its digits is 24576, while the sum is 34.

The square root of 84424831 is about 9188.2985911430. The cubic root of 84424831 is about 438.6889884671.

The spelling of 84424831 in words is "eighty-four million, four hundred twenty-four thousand, eight hundred thirty-one".