84548491 has 2 divisors, whose sum is σ = 84548492. Its totient is φ = 84548490.

The previous prime is 84548489. The next prime is 84548509. The reversal of 84548491 is 19484548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84548491 - 2¹ = 84548489 is a prime.

Together with 84548489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (84548791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42274245 + 42274246.

It is an arithmetic number, because the mean of its divisors is an integer number (42274246).

Almost surely, 2^84548491 is an apocalyptic number.

84548491 is a deficient number, since it is larger than the sum of its proper divisors (1).

84548491 is an equidigital number, since it uses as much as digits as its factorization.

84548491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 43.

The square root of 84548491 is about 9195.0253398237. The cubic root of 84548491 is about 438.9030716728.

The spelling of 84548491 in words is "eighty-four million, five hundred forty-eight thousand, four hundred ninety-one".