84237841 has 4 divisors (see below), whose sum is σ = 84263652. Its totient is φ = 84212032.

The previous prime is 84237833. The next prime is 84237893. The reversal of 84237841 is 14873248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28302400 + 55935441 = 5320^2 + 7479^2 .

It is a cyclic number.

It is not a de Polignac number, because 84237841 - 2³ = 84237833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84237841.

It is not an unprimeable number, because it can be changed into a prime (84237341) 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 3 ways as a sum of consecutive naturals, for example, 7156 + ... + 14821.

It is an arithmetic number, because the mean of its divisors is an integer number (21065913).

Almost surely, 2^84237841 is an apocalyptic number.

It is an amenable number.

84237841 is a deficient number, since it is larger than the sum of its proper divisors (25811).

84237841 is a wasteful number, since it uses less digits than its factorization.

84237841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25810.

The product of its digits is 43008, while the sum is 37.

The square root of 84237841 is about 9178.1175085090. The cubic root of 84237841 is about 438.3648694061.

It can be divided in two parts, 84237 and 841, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 84237841 in words is "eighty-four million, two hundred thirty-seven thousand, eight hundred forty-one".