73420666 has 16 divisors (see below), whose sum is σ = 121313088. Its totient is φ = 33048000.

The previous prime is 73420657. The next prime is 73420667. The reversal of 73420666 is 66602437.

It is not an unprimeable number, because it can be changed into a prime (73420667) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13935 + ... + 18466.

It is an arithmetic number, because the mean of its divisors is an integer number (7582068).

Almost surely, 2^73420666 is an apocalyptic number.

73420666 is a deficient number, since it is larger than the sum of its proper divisors (47892422).

73420666 is a wasteful number, since it uses less digits than its factorization.

73420666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32517.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 73420666 is about 8568.5859977011. The cubic root of 73420666 is about 418.7351706043.

The spelling of 73420666 in words is "seventy-three million, four hundred twenty thousand, six hundred sixty-six".