84545413 has 2 divisors, whose sum is σ = 84545414. Its totient is φ = 84545412.

The previous prime is 84545393. The next prime is 84545449. The reversal of 84545413 is 31454548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80676324 + 3869089 = 8982^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 84545413 - 2⁵ = 84545381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84545453) 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, 42272706 + 42272707.

It is an arithmetic number, because the mean of its divisors is an integer number (42272707).

Almost surely, 2^84545413 is an apocalyptic number.

It is an amenable number.

84545413 is a deficient number, since it is larger than the sum of its proper divisors (1).

84545413 is an equidigital number, since it uses as much as digits as its factorization.

84545413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 34.

The square root of 84545413 is about 9194.8579651890. The cubic root of 84545413 is about 438.8977454983.

The spelling of 84545413 in words is "eighty-four million, five hundred forty-five thousand, four hundred thirteen".