866672252 has 12 divisors (see below), whose sum is σ = 1517988696. Its totient is φ = 432961200.

The previous prime is 866672249. The next prime is 866672281. The reversal of 866672252 is 252276668.

It is a super-2 number, since 2×866672252² = 1502241584773503008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 88499 + ... + 97802.

It is an arithmetic number, because the mean of its divisors is an integer number (126499058).

Almost surely, 2^866672252 is an apocalyptic number.

It is an amenable number.

866672252 is a deficient number, since it is larger than the sum of its proper divisors (651316444).

866672252 is a wasteful number, since it uses less digits than its factorization.

866672252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187468 (or 187466 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 866672252 is about 29439.2977497766. The cubic root of 866672252 is about 953.4215501307.

The spelling of 866672252 in words is "eight hundred sixty-six million, six hundred seventy-two thousand, two hundred fifty-two".