867672560 has 20 divisors (see below), whose sum is σ = 2017338888. Its totient is φ = 347068992.

The previous prime is 867672529. The next prime is 867672569. The reversal of 867672560 is 65276768.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867672569) 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 3 ways as a sum of consecutive naturals, for example, 5422874 + ... + 5423033.

Almost surely, 2^867672560 is an apocalyptic number.

867672560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

867672560 is an abundant number, since it is smaller than the sum of its proper divisors (1149666328).

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

867672560 is a wasteful number, since it uses less digits than its factorization.

867672560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845920 (or 10845914 counting only the distinct ones).

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

The square root of 867672560 is about 29456.2821822442. The cubic root of 867672560 is about 953.7882202734.

The spelling of 867672560 in words is "eight hundred sixty-seven million, six hundred seventy-two thousand, five hundred sixty".