851167028 has 12 divisors (see below), whose sum is σ = 1510522272. Its totient is φ = 419589240.

The previous prime is 851167027. The next prime is 851167063. The reversal of 851167028 is 820761158.

It is a junction number, because it is equal to n+sod(n) for n = 851166982 and 851167000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851167021) 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, 1498250 + ... + 1498817.

It is an arithmetic number, because the mean of its divisors is an integer number (125876856).

Almost surely, 2^851167028 is an apocalyptic number.

It is an amenable number.

851167028 is a deficient number, since it is larger than the sum of its proper divisors (659355244).

851167028 is a wasteful number, since it uses less digits than its factorization.

851167028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997142 (or 2997140 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 851167028 is about 29174.7669742193. The cubic root of 851167028 is about 947.7015638550.

The spelling of 851167028 in words is "eight hundred fifty-one million, one hundred sixty-seven thousand, twenty-eight".