856470530 has 8 divisors (see below), whose sum is σ = 1541646972. Its totient is φ = 342588208.

The previous prime is 856470463. The next prime is 856470539. The reversal of 856470530 is 35074658.

It can be written as a sum of positive squares in 2 ways, for example, as 854217529 + 2253001 = 29227^2 + 1501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (856470539) 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 3 ways as a sum of consecutive naturals, for example, 42823517 + ... + 42823536.

Almost surely, 2^856470530 is an apocalyptic number.

856470530 is a deficient number, since it is larger than the sum of its proper divisors (685176442).

856470530 is a wasteful number, since it uses less digits than its factorization.

856470530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85647060.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 856470530 is about 29265.5177640854. The cubic root of 856470530 is about 949.6658215191.

The spelling of 856470530 in words is "eight hundred fifty-six million, four hundred seventy thousand, five hundred thirty".