866679052 has 6 divisors (see below), whose sum is σ = 1516688348. Its totient is φ = 433339524.

The previous prime is 866679049. The next prime is 866679109. The reversal of 866679052 is 250976668.

It is a happy number.

It is a super-2 number, since 2×866679052² = 1502265158351237408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 866678987 and 866679005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108334878 + ... + 108334885.

Almost surely, 2^866679052 is an apocalyptic number.

It is an amenable number.

866679052 is a deficient number, since it is larger than the sum of its proper divisors (650009296).

866679052 is a wasteful number, since it uses less digits than its factorization.

866679052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216669767 (or 216669765 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 866679052 is about 29439.4132414354. The cubic root of 866679052 is about 953.4240436721.

The spelling of 866679052 in words is "eight hundred sixty-six million, six hundred seventy-nine thousand, fifty-two".