867641250 has 80 divisors (see below), whose sum is σ = 2478256704. Its totient is φ = 198312000.

The previous prime is 867641219. The next prime is 867641273. The reversal of 867641250 is 52146768.

It is a junction number, because it is equal to n+sod(n) for n = 867641199 and 867641208.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 9724 + ... + 42776.

Almost surely, 2^867641250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867641250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239128352).

867641250 is an abundant number, since it is smaller than the sum of its proper divisors (1610615454).

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

867641250 is a wasteful number, since it uses less digits than its factorization.

867641250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33085 (or 33070 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 867641250 is about 29455.7507118729. The cubic root of 867641250 is about 953.7767476396.

The spelling of 867641250 in words is "eight hundred sixty-seven million, six hundred forty-one thousand, two hundred fifty".