867020646 has 16 divisors (see below), whose sum is σ = 1734340608. Its totient is φ = 288957000.

The previous prime is 867020641. The next prime is 867020647. The reversal of 867020646 is 646020768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867020641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47011 + ... + 62801.

It is an arithmetic number, because the mean of its divisors is an integer number (108396288).

Almost surely, 2^867020646 is an apocalyptic number.

867020646 is an abundant number, since it is smaller than the sum of its proper divisors (867319962).

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

867020646 is a wasteful number, since it uses less digits than its factorization.

867020646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24947.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 867020646 is about 29445.2143140443. The cubic root of 867020646 is about 953.5492884798.

The spelling of 867020646 in words is "eight hundred sixty-seven million, twenty thousand, six hundred forty-six".