84641059 has 2 divisors, whose sum is σ = 84641060. Its totient is φ = 84641058.

The previous prime is 84641057. The next prime is 84641069. The reversal of 84641059 is 95014648.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84641059 - 2¹ = 84641057 is a prime.

Together with 84641057, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84641057) 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 as a sum of consecutive naturals, namely, 42320529 + 42320530.

It is an arithmetic number, because the mean of its divisors is an integer number (42320530).

Almost surely, 2^84641059 is an apocalyptic number.

84641059 is a deficient number, since it is larger than the sum of its proper divisors (1).

84641059 is an equidigital number, since it uses as much as digits as its factorization.

84641059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 84641059 is about 9200.0575541678. The cubic root of 84641059 is about 439.0631910738.

It can be divided in two parts, 846 and 41059, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 84641059 in words is "eighty-four million, six hundred forty-one thousand, fifty-nine".