851010087 has 4 divisors (see below), whose sum is σ = 1134680120. Its totient is φ = 567340056.

The previous prime is 851010077. The next prime is 851010091. The reversal of 851010087 is 780010158.

851010087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 851010087 - 2⁴ = 851010071 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 (851010077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141835012 + ... + 141835017.

It is an arithmetic number, because the mean of its divisors is an integer number (283670030).

Almost surely, 2^851010087 is an apocalyptic number.

851010087 is a deficient number, since it is larger than the sum of its proper divisors (283670033).

851010087 is a wasteful number, since it uses less digits than its factorization.

851010087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283670032.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 851010087 is about 29172.0771800707. The cubic root of 851010087 is about 947.6433134887.

The spelling of 851010087 in words is "eight hundred fifty-one million, ten thousand, eighty-seven".