870285248 has 56 divisors (see below), whose sum is σ = 1981090272. Its totient is φ = 371579904.

The previous prime is 870285187. The next prime is 870285257. The reversal of 870285248 is 842582078.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 870285199 and 870285208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120590 + ... + 127602.

It is an arithmetic number, because the mean of its divisors is an integer number (35376612).

Almost surely, 2^870285248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870285248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990545136).

870285248 is an abundant number, since it is smaller than the sum of its proper divisors (1110805024).

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

870285248 is a wasteful number, since it uses less digits than its factorization.

870285248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7309 (or 7299 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 870285248 is about 29500.5974176795. The cubic root of 870285248 is about 954.7445925730.

The spelling of 870285248 in words is "eight hundred seventy million, two hundred eighty-five thousand, two hundred forty-eight".