854091889 has 8 divisors (see below), whose sum is σ = 976772480. Its totient is φ = 731578176.

The previous prime is 854091863. The next prime is 854091923. The reversal of 854091889 is 988190458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 854091889 - 2⁷ = 854091761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854091389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30549 + ... + 51394.

It is an arithmetic number, because the mean of its divisors is an integer number (122096560).

Almost surely, 2^854091889 is an apocalyptic number.

It is an amenable number.

854091889 is a deficient number, since it is larger than the sum of its proper divisors (122680591).

854091889 is a wasteful number, since it uses less digits than its factorization.

854091889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83439.

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 854091889 is about 29224.8505385400. The cubic root of 854091889 is about 948.7858502067.

The spelling of 854091889 in words is "eight hundred fifty-four million, ninety-one thousand, eight hundred eighty-nine".