66877384 has 32 divisors (see below), whose sum is σ = 146646720. Its totient is φ = 27994176.

The previous prime is 66877373. The next prime is 66877409. The reversal of 66877384 is 48377866.

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 7 ways as a sum of consecutive naturals, for example, 11479 + ... + 16294.

It is an arithmetic number, because the mean of its divisors is an integer number (4582710).

Almost surely, 2^66877384 is an apocalyptic number.

It is an amenable number.

66877384 is an abundant number, since it is smaller than the sum of its proper divisors (79769336).

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

66877384 is a wasteful number, since it uses less digits than its factorization.

66877384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27829 (or 27825 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 66877384 is about 8177.8593776122. The cubic root of 66877384 is about 405.9068921876.

The spelling of 66877384 in words is "sixty-six million, eight hundred seventy-seven thousand, three hundred eighty-four".