66924927 has 16 divisors (see below), whose sum is σ = 99512160. Its totient is φ = 44452800.

The previous prime is 66924919. The next prime is 66924941. The reversal of 66924927 is 72942966.

It is not a de Polignac number, because 66924927 - 2³ = 66924919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66924947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3177 + ... + 11997.

It is an arithmetic number, because the mean of its divisors is an integer number (6219510).

Almost surely, 2^66924927 is an apocalyptic number.

66924927 is a deficient number, since it is larger than the sum of its proper divisors (32587233).

66924927 is a wasteful number, since it uses less digits than its factorization.

66924927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111 (or 9105 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 66924927 is about 8180.7656732118. The cubic root of 66924927 is about 406.0030555393.

The spelling of 66924927 in words is "sixty-six million, nine hundred twenty-four thousand, nine hundred twenty-seven".