84031243 has 8 divisors (see below), whose sum is σ = 88542720. Its totient is φ = 79528680.

The previous prime is 84031237. The next prime is 84031247. The reversal of 84031243 is 34213048.

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

It is not a de Polignac number, because 84031243 - 2¹⁷ = 83900171 is a prime.

It is a super-2 number, since 2×84031243² = 14122499600250098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84031247) 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 in 7 ways as a sum of consecutive naturals, for example, 27246 + ... + 30172.

It is an arithmetic number, because the mean of its divisors is an integer number (11067840).

Almost surely, 2^84031243 is an apocalyptic number.

84031243 is a deficient number, since it is larger than the sum of its proper divisors (4511477).

84031243 is a wasteful number, since it uses less digits than its factorization.

84031243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 84031243 is about 9166.8556768393. The cubic root of 84031243 is about 438.0062046062.

The spelling of 84031243 in words is "eighty-four million, thirty-one thousand, two hundred forty-three".