93909973 has 2 divisors, whose sum is σ = 93909974. Its totient is φ = 93909972.

The previous prime is 93909961. The next prime is 93909997. The reversal of 93909973 is 37990939.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67930564 + 25979409 = 8242^2 + 5097^2 .

It is a cyclic number.

It is not a de Polignac number, because 93909973 - 2⁹ = 93909461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93909773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46954986 + 46954987.

It is an arithmetic number, because the mean of its divisors is an integer number (46954987).

Almost surely, 2^93909973 is an apocalyptic number.

It is an amenable number.

93909973 is a deficient number, since it is larger than the sum of its proper divisors (1).

93909973 is an equidigital number, since it uses as much as digits as its factorization.

93909973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 413343, while the sum is 49.

The square root of 93909973 is about 9690.7158146341. The cubic root of 93909973 is about 454.5383926939.

The spelling of 93909973 in words is "ninety-three million, nine hundred nine thousand, nine hundred seventy-three".