84981307 has 2 divisors, whose sum is σ = 84981308. Its totient is φ = 84981306.

The previous prime is 84981277. The next prime is 84981331. The reversal of 84981307 is 70318948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84981307 - 2²³ = 76592699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84981307.

It is not a weakly prime, because it can be changed into another prime (84981367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42490653 + 42490654.

It is an arithmetic number, because the mean of its divisors is an integer number (42490654).

Almost surely, 2^84981307 is an apocalyptic number.

84981307 is a deficient number, since it is larger than the sum of its proper divisors (1).

84981307 is an equidigital number, since it uses as much as digits as its factorization.

84981307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 84981307 is about 9218.5306312883. The cubic root of 84981307 is about 439.6507335049.

The spelling of 84981307 in words is "eighty-four million, nine hundred eighty-one thousand, three hundred seven".