870844648 has 16 divisors (see below), whose sum is σ = 1637989380. Its totient is φ = 434047488.

The previous prime is 870844603. The next prime is 870844649. The reversal of 870844648 is 846448078.

It can be written as a sum of positive squares in 2 ways, for example, as 854860644 + 15984004 = 29238^2 + 3998^2 .

It is not an unprimeable number, because it can be changed into a prime (870844649) 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 3 ways as a sum of consecutive naturals, for example, 169161 + ... + 174232.

Almost surely, 2^870844648 is an apocalyptic number.

It is an amenable number.

870844648 is a deficient number, since it is larger than the sum of its proper divisors (767144732).

870844648 is a wasteful number, since it uses less digits than its factorization.

870844648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343716 (or 343712 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 49.

The square root of 870844648 is about 29510.0770585236. The cubic root of 870844648 is about 954.9491116219.

The spelling of 870844648 in words is "eight hundred seventy million, eight hundred forty-four thousand, six hundred forty-eight".