853421187 has 8 divisors (see below), whose sum is σ = 1187368704. Its totient is φ = 544210568.

The previous prime is 853421183. The next prime is 853421203. The reversal of 853421187 is 781124358.

853421187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 853421187 - 2² = 853421183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (853421183) 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, 6184143 + ... + 6184280.

It is an arithmetic number, because the mean of its divisors is an integer number (148421088).

Almost surely, 2^853421187 is an apocalyptic number.

853421187 is a deficient number, since it is larger than the sum of its proper divisors (333947517).

853421187 is a wasteful number, since it uses less digits than its factorization.

853421187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12368449.

The product of its digits is 53760, while the sum is 39.

The square root of 853421187 is about 29213.3734272507. The cubic root of 853421187 is about 948.5374307177.

The spelling of 853421187 in words is "eight hundred fifty-three million, four hundred twenty-one thousand, one hundred eighty-seven".