864081382 has 4 divisors (see below), whose sum is σ = 1296122076. Its totient is φ = 432040690.

The previous prime is 864081359. The next prime is 864081397. The reversal of 864081382 is 283180468.

864081382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216020344 + ... + 216020347.

It is an arithmetic number, because the mean of its divisors is an integer number (324030519).

Almost surely, 2^864081382 is an apocalyptic number.

864081382 is a deficient number, since it is larger than the sum of its proper divisors (432040694).

864081382 is a wasteful number, since it uses less digits than its factorization.

864081382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432040693.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 864081382 is about 29395.2612167336. The cubic root of 864081382 is about 952.4705343792.

The spelling of 864081382 in words is "eight hundred sixty-four million, eighty-one thousand, three hundred eighty-two".