851685352 has 16 divisors (see below), whose sum is σ = 1825040160. Its totient is φ = 365007984.

The previous prime is 851685347. The next prime is 851685361. The reversal of 851685352 is 253586158.

It is a super-2 number, since 2×851685352² = 1450735877622727808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 851685299 and 851685308.

It is an unprimeable number.

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, 7604278 + ... + 7604389.

It is an arithmetic number, because the mean of its divisors is an integer number (114065010).

Almost surely, 2^851685352 is an apocalyptic number.

It is an amenable number.

851685352 is an abundant number, since it is smaller than the sum of its proper divisors (973354808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

851685352 is a wasteful number, since it uses less digits than its factorization.

851685352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15208680 (or 15208676 counting only the distinct ones).

The product of its digits is 288000, while the sum is 43.

The square root of 851685352 is about 29183.6487095085. The cubic root of 851685352 is about 947.8938946091.

The spelling of 851685352 in words is "eight hundred fifty-one million, six hundred eighty-five thousand, three hundred fifty-two".