856465548 has 24 divisors (see below), whose sum is σ = 2000281920. Its totient is φ = 285222480.

The previous prime is 856465543. The next prime is 856465567. The reversal of 856465548 is 845564658.

It is a self number, because there is not a number n which added to its sum of digits gives 856465548.

It is not an unprimeable number, because it can be changed into a prime (856465543) 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 7 ways as a sum of consecutive naturals, for example, 19618 + ... + 45801.

It is an arithmetic number, because the mean of its divisors is an integer number (83345080).

Almost surely, 2^856465548 is an apocalyptic number.

It is an amenable number.

856465548 is an abundant number, since it is smaller than the sum of its proper divisors (1143816372).

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

856465548 is a wasteful number, since it uses less digits than its factorization.

856465548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66517 (or 66515 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 51.

The square root of 856465548 is about 29265.4326467250. The cubic root of 856465548 is about 949.6639801464.

The spelling of 856465548 in words is "eight hundred fifty-six million, four hundred sixty-five thousand, five hundred forty-eight".