84919361 has 2 divisors, whose sum is σ = 84919362. Its totient is φ = 84919360.

The previous prime is 84919319. The next prime is 84919363. The reversal of 84919361 is 16391948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84916225 + 3136 = 9215^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 84919361 - 2²⁶ = 17810497 is a prime.

It is a super-2 number, since 2×84919361² = 14422595745296642, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 84919363, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (84919363) 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, 42459680 + 42459681.

It is an arithmetic number, because the mean of its divisors is an integer number (42459681).

Almost surely, 2^84919361 is an apocalyptic number.

It is an amenable number.

84919361 is a deficient number, since it is larger than the sum of its proper divisors (1).

84919361 is an equidigital number, since it uses as much as digits as its factorization.

84919361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 84919361 is about 9215.1701557812. The cubic root of 84919361 is about 439.5438816751.

The spelling of 84919361 in words is "eighty-four million, nine hundred nineteen thousand, three hundred sixty-one".