66873276 has 30 divisors (see below), whose sum is σ = 174820800. Its totient is φ = 22290984.

The previous prime is 66873253. The next prime is 66873277. The reversal of 66873276 is 67237866.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66873277) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 102876 + ... + 103523.

It is an arithmetic number, because the mean of its divisors is an integer number (5827360).

Almost surely, 2^66873276 is an apocalyptic number.

It is an amenable number.

66873276 is an abundant number, since it is smaller than the sum of its proper divisors (107947524).

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

66873276 is a wasteful number, since it uses less digits than its factorization.

66873276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206415 (or 206404 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 66873276 is about 8177.6082077830. The cubic root of 66873276 is about 405.8985809591.

It can be divided in two parts, 66 and 873276, that multiplied together give a triangular number (57636216 = T₁₀₇₃₆).

The spelling of 66873276 in words is "sixty-six million, eight hundred seventy-three thousand, two hundred seventy-six".