867270656 has 128 divisors (see below), whose sum is σ = 2097120000. Its totient is φ = 350355456.

The previous prime is 867270653. The next prime is 867270659. The reversal of 867270656 is 656072768.

It is an interprime number because it is at equal distance from previous prime (867270653) and next prime (867270659).

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 867270656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867270653) 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, 4358045 + ... + 4358243.

It is an arithmetic number, because the mean of its divisors is an integer number (16383750).

Almost surely, 2^867270656 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 867270656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048560000).

867270656 is an abundant number, since it is smaller than the sum of its proper divisors (1229849344).

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

867270656 is an equidigital number, since it uses as much as digits as its factorization.

867270656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 867270656 is about 29449.4593498760. The cubic root of 867270656 is about 953.6409333359.

The spelling of 867270656 in words is "eight hundred sixty-seven million, two hundred seventy thousand, six hundred fifty-six".