867004650 has 72 divisors (see below), whose sum is σ = 2339632620. Its totient is φ = 230181120.

The previous prime is 867004631. The next prime is 867004667. The reversal of 867004650 is 56400768.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 388838961 + 478165689 = 19719^2 + 21867^2 .

It is a Curzon number.

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 35 ways as a sum of consecutive naturals, for example, 100716 + ... + 108984.

Almost surely, 2^867004650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867004650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169816310).

867004650 is an abundant number, since it is smaller than the sum of its proper divisors (1472627970).

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

867004650 is a wasteful number, since it uses less digits than its factorization.

867004650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8520 (or 8512 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 867004650 is about 29444.9426897048. The cubic root of 867004650 is about 953.5434243103.

The spelling of 867004650 in words is "eight hundred sixty-seven million, four thousand, six hundred fifty".