851454889 has 8 divisors (see below), whose sum is σ = 856737792. Its totient is φ = 846180960.

The previous prime is 851454883. The next prime is 851454893. The reversal of 851454889 is 988454158.

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 851454889 - 2⁹ = 851454377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851454883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333552 + ... + 336094.

It is an arithmetic number, because the mean of its divisors is an integer number (107092224).

Almost surely, 2^851454889 is an apocalyptic number.

It is an amenable number.

851454889 is a deficient number, since it is larger than the sum of its proper divisors (5282903).

851454889 is a wasteful number, since it uses less digits than its factorization.

851454889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its digits is 1843200, while the sum is 52.

The square root of 851454889 is about 29179.6999470522. The cubic root of 851454889 is about 947.8083880006.

The spelling of 851454889 in words is "eight hundred fifty-one million, four hundred fifty-four thousand, eight hundred eighty-nine".