84243807 has 20 divisors (see below), whose sum is σ = 128920176. Its totient is φ = 54790560.

The previous prime is 84243793. The next prime is 84243827. The reversal of 84243807 is 70834248.

It is not a de Polignac number, because 84243807 - 2⁴ = 84243791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84243827) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9363 + ... + 16004.

Almost surely, 2^84243807 is an apocalyptic number.

84243807 is a deficient number, since it is larger than the sum of its proper divisors (44676369).

84243807 is a wasteful number, since it uses less digits than its factorization.

84243807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25420 (or 25411 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 84243807 is about 9178.4425149368. The cubic root of 84243807 is about 438.3752179741.

The spelling of 84243807 in words is "eighty-four million, two hundred forty-three thousand, eight hundred seven".