84591373 has 2 divisors, whose sum is σ = 84591374. Its totient is φ = 84591372.

The previous prime is 84591341. The next prime is 84591391. The reversal of 84591373 is 37319548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81486729 + 3104644 = 9027^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 84591373 - 2⁵ = 84591341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84591673) 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, 42295686 + 42295687.

It is an arithmetic number, because the mean of its divisors is an integer number (42295687).

Almost surely, 2^84591373 is an apocalyptic number.

It is an amenable number.

84591373 is a deficient number, since it is larger than the sum of its proper divisors (1).

84591373 is an equidigital number, since it uses as much as digits as its factorization.

84591373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 84591373 is about 9197.3568485734. The cubic root of 84591373 is about 438.9772612897.

The spelling of 84591373 in words is "eighty-four million, five hundred ninety-one thousand, three hundred seventy-three".