866073071 has 8 divisors (see below), whose sum is σ = 901054464. Its totient is φ = 831531960.

The previous prime is 866073049. The next prime is 866073083. The reversal of 866073071 is 170370668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 866073071 - 2¹⁸ = 865810927 is a prime.

It is a super-2 number, since 2×866073071² = 1500165128622742082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866073001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106055 + ... + 113928.

It is an arithmetic number, because the mean of its divisors is an integer number (112631808).

Almost surely, 2^866073071 is an apocalyptic number.

866073071 is a deficient number, since it is larger than the sum of its proper divisors (34981393).

866073071 is a wasteful number, since it uses less digits than its factorization.

866073071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220141.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 866073071 is about 29429.1194397658. The cubic root of 866073071 is about 953.2017808625.

The spelling of 866073071 in words is "eight hundred sixty-six million, seventy-three thousand, seventy-one".