84455773 has 2 divisors, whose sum is σ = 84455774. Its totient is φ = 84455772.

The previous prime is 84455771. The next prime is 84455797. The reversal of 84455773 is 37755448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48958009 + 35497764 = 6997^2 + 5958^2 .

It is a cyclic number.

It is not a de Polignac number, because 84455773 - 2¹ = 84455771 is a prime.

Together with 84455771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84455771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42227886 + 42227887.

It is an arithmetic number, because the mean of its divisors is an integer number (42227887).

Almost surely, 2^84455773 is an apocalyptic number.

It is an amenable number.

84455773 is a deficient number, since it is larger than the sum of its proper divisors (1).

84455773 is an equidigital number, since it uses as much as digits as its factorization.

84455773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 43.

The square root of 84455773 is about 9189.9822089055. The cubic root of 84455773 is about 438.7425756110.

The spelling of 84455773 in words is "eighty-four million, four hundred fifty-five thousand, seven hundred seventy-three".