854842973 has 2 divisors, whose sum is σ = 854842974. Its totient is φ = 854842972.

The previous prime is 854842913. The next prime is 854842987. The reversal of 854842973 is 379248458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 854802169 + 40804 = 29237^2 + 202^2 .

It is a cyclic number.

It is not a de Polignac number, because 854842973 - 2⁸ = 854842717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854842913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427421486 + 427421487.

It is an arithmetic number, because the mean of its divisors is an integer number (427421487).

Almost surely, 2^854842973 is an apocalyptic number.

It is an amenable number.

854842973 is a deficient number, since it is larger than the sum of its proper divisors (1).

854842973 is an equidigital number, since it uses as much as digits as its factorization.

854842973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The square root of 854842973 is about 29237.6978060859. The cubic root of 854842973 is about 949.0638878480.

The spelling of 854842973 in words is "eight hundred fifty-four million, eight hundred forty-two thousand, nine hundred seventy-three".