870055424 has 160 divisors (see below), whose sum is σ = 2111864832. Its totient is φ = 350208000.

The previous prime is 870055423. The next prime is 870055447. The reversal of 870055424 is 424550078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870055423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4555169 + ... + 4555359.

Almost surely, 2^870055424 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 870055424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055932416).

870055424 is an abundant number, since it is smaller than the sum of its proper divisors (1241809408).

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

870055424 is a wasteful number, since it uses less digits than its factorization.

870055424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 870055424 is about 29496.7019173331. The cubic root of 870055424 is about 954.6605425294.

It can be divided in two parts, 87005 and 5424, that added together give a palindrome (92429).

The spelling of 870055424 in words is "eight hundred seventy million, fifty-five thousand, four hundred twenty-four".