854128007 has 4 divisors (see below), whose sum is σ = 860362656. Its totient is φ = 847893360.

The previous prime is 854128001. The next prime is 854128021. The reversal of 854128007 is 700821458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 854128007 - 2¹⁰ = 854126983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854128001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3117119 + ... + 3117392.

It is an arithmetic number, because the mean of its divisors is an integer number (215090664).

Almost surely, 2^854128007 is an apocalyptic number.

854128007 is a deficient number, since it is larger than the sum of its proper divisors (6234649).

854128007 is a wasteful number, since it uses less digits than its factorization.

854128007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234648.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 854128007 is about 29225.4684650221. The cubic root of 854128007 is about 948.7992241636.

The spelling of 854128007 in words is "eight hundred fifty-four million, one hundred twenty-eight thousand, seven".