870550720 has 56 divisors (see below), whose sum is σ = 2232471024. Its totient is φ = 321432576.

The previous prime is 870550699. The next prime is 870550727. The reversal of 870550720 is 27055078.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (870550727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100474 + ... + 108793.

It is an arithmetic number, because the mean of its divisors is an integer number (39865554).

Almost surely, 2^870550720 is an apocalyptic number.

870550720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

870550720 is an abundant number, since it is smaller than the sum of its proper divisors (1361920304).

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

870550720 is a wasteful number, since it uses less digits than its factorization.

870550720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209297 (or 209287 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 870550720 is about 29505.0965089084. The cubic root of 870550720 is about 954.8416612027.

The spelling of 870550720 in words is "eight hundred seventy million, five hundred fifty thousand, seven hundred twenty".