851804084 has 12 divisors (see below), whose sum is σ = 1530945444. Its totient is φ = 414391104.

The previous prime is 851803993. The next prime is 851804087. The reversal of 851804084 is 480408158.

It can be written as a sum of positive squares in 2 ways, for example, as 643636900 + 208167184 = 25370^2 + 14428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851804087) 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, 2877569 + ... + 2877864.

It is an arithmetic number, because the mean of its divisors is an integer number (127578787).

Almost surely, 2^851804084 is an apocalyptic number.

It is an amenable number.

851804084 is a deficient number, since it is larger than the sum of its proper divisors (679141360).

851804084 is a wasteful number, since it uses less digits than its factorization.

851804084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755474 (or 5755472 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 851804084 is about 29185.6828599229. The cubic root of 851804084 is about 947.9379406519.

The spelling of 851804084 in words is "eight hundred fifty-one million, eight hundred four thousand, eighty-four".