854909457 has 16 divisors (see below), whose sum is σ = 1172463552. Its totient is φ = 553694400.

The previous prime is 854909423. The next prime is 854909521. The reversal of 854909457 is 754909458.

It is not a de Polignac number, because 854909457 - 2⁷ = 854909329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (854909857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72318 + ... + 83304.

It is an arithmetic number, because the mean of its divisors is an integer number (73278972).

Almost surely, 2^854909457 is an apocalyptic number.

It is an amenable number.

854909457 is a deficient number, since it is larger than the sum of its proper divisors (317554095).

854909457 is a wasteful number, since it uses less digits than its factorization.

854909457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11728.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 854909457 is about 29238.8347408032. The cubic root of 854909457 is about 949.0884911688.

Subtracting from 854909457 its reverse (754909458), we obtain a palindrome (99999999).

The spelling of 854909457 in words is "eight hundred fifty-four million, nine hundred nine thousand, four hundred fifty-seven".