866678058 has 24 divisors (see below), whose sum is σ = 1878458400. Its totient is φ = 288791784.

The previous prime is 866678039. The next prime is 866678077. The reversal of 866678058 is 850876668.

866678058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (866678039) and next prime (866678077).

It is a super-3 number, since 3×866678058³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 866677995 and 866678013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59283 + ... + 72441.

It is an arithmetic number, because the mean of its divisors is an integer number (78269100).

Almost surely, 2^866678058 is an apocalyptic number.

866678058 is an abundant number, since it is smaller than the sum of its proper divisors (1011780342).

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

866678058 is a wasteful number, since it uses less digits than its factorization.

866678058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16826 (or 16823 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The square root of 866678058 is about 29439.3963593006. The cubic root of 866678058 is about 953.4236791759.

The spelling of 866678058 in words is "eight hundred sixty-six million, six hundred seventy-eight thousand, fifty-eight".