870464805 has 32 divisors (see below), whose sum is σ = 1599744000. Its totient is φ = 395917632.

The previous prime is 870464773. The next prime is 870464807. The reversal of 870464805 is 508464078.

It is not a de Polignac number, because 870464805 - 2⁵ = 870464773 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870464807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66 + ... + 41724.

It is an arithmetic number, because the mean of its divisors is an integer number (49992000).

Almost surely, 2^870464805 is an apocalyptic number.

It is an amenable number.

870464805 is a deficient number, since it is larger than the sum of its proper divisors (729279195).

870464805 is a wasteful number, since it uses less digits than its factorization.

870464805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41873.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 870464805 is about 29503.6405380760. The cubic root of 870464805 is about 954.8102489337.

The spelling of 870464805 in words is "eight hundred seventy million, four hundred sixty-four thousand, eight hundred five".