864279412 has 12 divisors (see below), whose sum is σ = 1533208516. Its totient is φ = 426219840.

The previous prime is 864279397. The next prime is 864279413. The reversal of 864279412 is 214972468.

It can be written as a sum of positive squares in 2 ways, for example, as 733543056 + 130736356 = 27084^2 + 11434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864279413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1479639 + ... + 1480222.

Almost surely, 2^864279412 is an apocalyptic number.

It is an amenable number.

864279412 is a deficient number, since it is larger than the sum of its proper divisors (668929104).

864279412 is a wasteful number, since it uses less digits than its factorization.

864279412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959938 (or 2959936 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 864279412 is about 29398.6294238354. The cubic root of 864279412 is about 952.5432911575.

The spelling of 864279412 in words is "eight hundred sixty-four million, two hundred seventy-nine thousand, four hundred twelve".