853009994 has 8 divisors (see below), whose sum is σ = 1282892160. Its totient is φ = 425379276.

The previous prime is 853009987. The next prime is 853009999. The reversal of 853009994 is 499900358.

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

It is not an unprimeable number, because it can be changed into a prime (853009999) 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, 561914 + ... + 563429.

It is an arithmetic number, because the mean of its divisors is an integer number (160361520).

Almost surely, 2^853009994 is an apocalyptic number.

853009994 is a deficient number, since it is larger than the sum of its proper divisors (429882166).

853009994 is a wasteful number, since it uses less digits than its factorization.

853009994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125724.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 853009994 is about 29206.3348265406. The cubic root of 853009994 is about 948.3850656972.

The spelling of 853009994 in words is "eight hundred fifty-three million, nine thousand, nine hundred ninety-four".