870455712 has 48 divisors (see below), whose sum is σ = 2611369152. Its totient is φ = 248701440.

The previous prime is 870455647. The next prime is 870455713. The reversal of 870455712 is 217554078.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (870455713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646989 + ... + 648332.

It is an arithmetic number, because the mean of its divisors is an integer number (54403524).

Almost surely, 2^870455712 is an apocalyptic number.

It is an amenable number.

870455712 is an abundant number, since it is smaller than the sum of its proper divisors (1740913440).

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

870455712 is a wasteful number, since it uses less digits than its factorization.

870455712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295341 (or 1295333 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 870455712 is about 29503.4864380466. The cubic root of 870455712 is about 954.8069242272.

The spelling of 870455712 in words is "eight hundred seventy million, four hundred fifty-five thousand, seven hundred twelve".