866076039 has 12 divisors (see below), whose sum is σ = 1294137000. Its totient is φ = 557474064.

The previous prime is 866075953. The next prime is 866076049. The reversal of 866076039 is 930670668.

866076039 is a `hidden beast` number, since 8 + 6 + 607 + 6 + 0 + 39 = 666.

It is not a de Polignac number, because 866076039 - 2¹³ = 866067847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866075985 and 866076003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866076049) 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 11 ways as a sum of consecutive naturals, for example, 1658889 + ... + 1659410.

It is an arithmetic number, because the mean of its divisors is an integer number (107844750).

Almost surely, 2^866076039 is an apocalyptic number.

866076039 is a deficient number, since it is larger than the sum of its proper divisors (428060961).

866076039 is a wasteful number, since it uses less digits than its factorization.

866076039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318334 (or 3318331 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 866076039 is about 29429.1698659680. The cubic root of 866076039 is about 953.2028697236.

The spelling of 866076039 in words is "eight hundred sixty-six million, seventy-six thousand, thirty-nine".