867731320 has 32 divisors (see below), whose sum is σ = 1954847520. Its totient is φ = 346656640.

The previous prime is 867731309. The next prime is 867731329. The reversal of 867731320 is 23137768.

It is a self number, because there is not a number n which added to its sum of digits gives 867731320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867731329) 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, 19629 + ... + 46051.

It is an arithmetic number, because the mean of its divisors is an integer number (61088985).

Almost surely, 2^867731320 is an apocalyptic number.

It is an amenable number.

867731320 is an abundant number, since it is smaller than the sum of its proper divisors (1087116200).

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

867731320 is a wasteful number, since it uses less digits than its factorization.

867731320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27255 (or 27251 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 867731320 is about 29457.2795756838. The cubic root of 867731320 is about 953.8097504117.

The spelling of 867731320 in words is "eight hundred sixty-seven million, seven hundred thirty-one thousand, three hundred twenty".