84592891 has 2 divisors, whose sum is σ = 84592892. Its totient is φ = 84592890.

The previous prime is 84592889. The next prime is 84592897. The reversal of 84592891 is 19829548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84592891 - 2¹ = 84592889 is a prime.

Together with 84592889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (84592897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42296445 + 42296446.

It is an arithmetic number, because the mean of its divisors is an integer number (42296446).

Almost surely, 2^84592891 is an apocalyptic number.

84592891 is a deficient number, since it is larger than the sum of its proper divisors (1).

84592891 is an equidigital number, since it uses as much as digits as its factorization.

84592891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 46.

The square root of 84592891 is about 9197.4393719122. The cubic root of 84592891 is about 438.9798871032.

The spelling of 84592891 in words is "eighty-four million, five hundred ninety-two thousand, eight hundred ninety-one".