84037243 has 2 divisors, whose sum is σ = 84037244. Its totient is φ = 84037242.

The previous prime is 84037237. The next prime is 84037253. The reversal of 84037243 is 34273048.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84037243 - 2²⁵ = 50482811 is a prime.

It is a super-2 number, since 2×84037243² = 14124516422082098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84037223) 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 as a sum of consecutive naturals, namely, 42018621 + 42018622.

It is an arithmetic number, because the mean of its divisors is an integer number (42018622).

Almost surely, 2^84037243 is an apocalyptic number.

84037243 is a deficient number, since it is larger than the sum of its proper divisors (1).

84037243 is an equidigital number, since it uses as much as digits as its factorization.

84037243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 84037243 is about 9167.1829369769. The cubic root of 84037243 is about 438.0166291998.

It can be divided in two parts, 840 and 37243, that added together give a palindrome (38083).

The spelling of 84037243 in words is "eighty-four million, thirty-seven thousand, two hundred forty-three".