84684241 has 2 divisors, whose sum is σ = 84684242. Its totient is φ = 84684240.

The previous prime is 84684239. The next prime is 84684253. The reversal of 84684241 is 14248648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83338641 + 1345600 = 9129^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 84684241 - 2¹ = 84684239 is a prime.

Together with 84684239, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 84684241.

It is not a weakly prime, because it can be changed into another prime (84684211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42342120 + 42342121.

It is an arithmetic number, because the mean of its divisors is an integer number (42342121).

Almost surely, 2^84684241 is an apocalyptic number.

It is an amenable number.

84684241 is a deficient number, since it is larger than the sum of its proper divisors (1).

84684241 is an equidigital number, since it uses as much as digits as its factorization.

84684241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49152, while the sum is 37.

The square root of 84684241 is about 9202.4040880631. The cubic root of 84684241 is about 439.1378451625.

The spelling of 84684241 in words is "eighty-four million, six hundred eighty-four thousand, two hundred forty-one".