870441856 has 32 divisors (see below), whose sum is σ = 1735748280. Its totient is φ = 434803200.

The previous prime is 870441827. The next prime is 870441881. The reversal of 870441856 is 658144078.

It is a tau number, because it is divible by the number of its divisors (32).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163915 + ... + 169141.

Almost surely, 2^870441856 is an apocalyptic number.

It is an amenable number.

870441856 is a deficient number, since it is larger than the sum of its proper divisors (865306424).

870441856 is a wasteful number, since it uses less digits than its factorization.

870441856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 870441856 is about 29503.2516174065. The cubic root of 870441856 is about 954.8018579634.

The spelling of 870441856 in words is "eight hundred seventy million, four hundred forty-one thousand, eight hundred fifty-six".