93920609 has 2 divisors, whose sum is σ = 93920610. Its totient is φ = 93920608.

The previous prime is 93920599. The next prime is 93920639. The reversal of 93920609 is 90602939.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76615009 + 17305600 = 8753^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 93920609 - 2⁸ = 93920353 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (93920639) 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 as a sum of consecutive naturals, namely, 46960304 + 46960305.

It is an arithmetic number, because the mean of its divisors is an integer number (46960305).

Almost surely, 2^93920609 is an apocalyptic number.

It is an amenable number.

93920609 is a deficient number, since it is larger than the sum of its proper divisors (1).

93920609 is an equidigital number, since it uses as much as digits as its factorization.

93920609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 93920609 is about 9691.2645717677. The cubic root of 93920609 is about 454.5555519927. Note that the first 5 decimals are identical.

The spelling of 93920609 in words is "ninety-three million, nine hundred twenty thousand, six hundred nine".