66924007 has 2 divisors, whose sum is σ = 66924008. Its totient is φ = 66924006.

The previous prime is 66923999. The next prime is 66924029. The reversal of 66924007 is 70042966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66924007 - 2³ = 66923999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66924097) 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 as a sum of consecutive naturals, namely, 33462003 + 33462004.

It is an arithmetic number, because the mean of its divisors is an integer number (33462004).

Almost surely, 2^66924007 is an apocalyptic number.

66924007 is a deficient number, since it is larger than the sum of its proper divisors (1).

66924007 is an equidigital number, since it uses as much as digits as its factorization.

66924007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 66924007 is about 8180.7094435629. The cubic root of 66924007 is about 406.0011951238.

The spelling of 66924007 in words is "sixty-six million, nine hundred twenty-four thousand, seven".