851473 has 6 divisors (see below), whose sum is σ = 990546. Its totient is φ = 729792.

The previous prime is 851471. The next prime is 851491. The reversal of 851473 is 374158.

It can be written as a sum of positive squares in only one way, i.e., 529984 + 321489 = 728^2 + 567^2 .

It is not a de Polignac number, because 851473 - 2¹ = 851471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8640 + ... + 8737.

It is an arithmetic number, because the mean of its divisors is an integer number (165091).

2⁸⁵¹⁴⁷³ is an apocalyptic number.

It is an amenable number.

851473 is a deficient number, since it is larger than the sum of its proper divisors (139073).

851473 is a wasteful number, since it uses less digits than its factorization.

851473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17391 (or 17384 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 851473 is about 922.7529463513. The cubic root of 851473 is about 94.7815108120.

The spelling of 851473 in words is "eight hundred fifty-one thousand, four hundred seventy-three".