870285845 has 96 divisors (see below), whose sum is σ = 1370670336. Its totient is φ = 524113920.

The previous prime is 870285827. The next prime is 870285859. The reversal of 870285845 is 548582078.

It is not a de Polignac number, because 870285845 - 2¹² = 870281749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 870285845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3075074 + ... + 3075356.

It is an arithmetic number, because the mean of its divisors is an integer number (14277816).

Almost surely, 2^870285845 is an apocalyptic number.

870285845 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

870285845 is a deficient number, since it is larger than the sum of its proper divisors (500384491).

870285845 is a wasteful number, since it uses less digits than its factorization.

870285845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 47.

The square root of 870285845 is about 29500.6075361169. The cubic root of 870285845 is about 954.7448108855.

The spelling of 870285845 in words is "eight hundred seventy million, two hundred eighty-five thousand, eight hundred forty-five".