854020009 has 8 divisors (see below), whose sum is σ = 862189568. Its totient is φ = 845873280.

The previous prime is 854019997. The next prime is 854020039. The reversal of 854020009 is 900020458.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 854020009 - 2¹¹ = 854017961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854020039) 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, 74809 + ... + 85465.

It is an arithmetic number, because the mean of its divisors is an integer number (107773696).

Almost surely, 2^854020009 is an apocalyptic number.

It is an amenable number.

854020009 is a deficient number, since it is larger than the sum of its proper divisors (8169559).

854020009 is a wasteful number, since it uses less digits than its factorization.

854020009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11415.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 854020009 is about 29223.6207373419. The cubic root of 854020009 is about 948.7592329925.

The spelling of 854020009 in words is "eight hundred fifty-four million, twenty thousand, nine".