867899712 has 56 divisors (see below), whose sum is σ = 2314464256. Its totient is φ = 287013888.

The previous prime is 867899699. The next prime is 867899719. The reversal of 867899712 is 217998768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867899719) 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, 6588 + ... + 42180.

Almost surely, 2^867899712 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 867899712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157232128).

867899712 is an abundant number, since it is smaller than the sum of its proper divisors (1446564544).

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

867899712 is a wasteful number, since it uses less digits than its factorization.

867899712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35735 (or 35725 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 57.

The square root of 867899712 is about 29460.1376778860. The cubic root of 867899712 is about 953.8714452164.

The spelling of 867899712 in words is "eight hundred sixty-seven million, eight hundred ninety-nine thousand, seven hundred twelve".