66930722 has 8 divisors (see below), whose sum is σ = 101894736. Its totient is φ = 32965812.

The previous prime is 66930719. The next prime is 66930733. The reversal of 66930722 is 22703966.

It is a happy number.

66930722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249608 + ... + 249875.

It is an arithmetic number, because the mean of its divisors is an integer number (12736842).

Almost surely, 2^66930722 is an apocalyptic number.

66930722 is a deficient number, since it is larger than the sum of its proper divisors (34964014).

66930722 is a wasteful number, since it uses less digits than its factorization.

66930722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499552.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 66930722 is about 8181.1198499961. The cubic root of 66930722 is about 406.0147737431.

The spelling of 66930722 in words is "sixty-six million, nine hundred thirty thousand, seven hundred twenty-two".