854230721 has 2 divisors, whose sum is σ = 854230722. Its totient is φ = 854230720.

The previous prime is 854230703. The next prime is 854230723. The reversal of 854230721 is 127032458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 622003600 + 232227121 = 24940^2 + 15239^2 .

It is a cyclic number.

It is not a de Polignac number, because 854230721 - 2¹⁰ = 854229697 is a prime.

Together with 854230723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (854230723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427115360 + 427115361.

It is an arithmetic number, because the mean of its divisors is an integer number (427115361).

Almost surely, 2^854230721 is an apocalyptic number.

It is an amenable number.

854230721 is a deficient number, since it is larger than the sum of its proper divisors (1).

854230721 is an equidigital number, since it uses as much as digits as its factorization.

854230721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 854230721 is about 29227.2256808613. The cubic root of 854230721 is about 948.8372555658.

The spelling of 854230721 in words is "eight hundred fifty-four million, two hundred thirty thousand, seven hundred twenty-one".