851087099 has 8 divisors (see below), whose sum is σ = 932225760. Its totient is φ = 773401216.

The previous prime is 851087093. The next prime is 851087129. The reversal of 851087099 is 990780158.

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 851087099 - 2⁸ = 851086843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851087093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862679 + ... + 863664.

It is an arithmetic number, because the mean of its divisors is an integer number (116528220).

Almost surely, 2^851087099 is an apocalyptic number.

851087099 is a deficient number, since it is larger than the sum of its proper divisors (81138661).

851087099 is a wasteful number, since it uses less digits than its factorization.

851087099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726389.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 851087099 is about 29173.3971110668. The cubic root of 851087099 is about 947.6718982285.

The spelling of 851087099 in words is "eight hundred fifty-one million, eighty-seven thousand, ninety-nine".