93999999 has 4 divisors (see below), whose sum is σ = 125333336. Its totient is φ = 62666664.

The previous prime is 93999989. The next prime is 94000007. The reversal of 93999999 is 99999939.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 93999999 - 2⁸ = 93999743 is a prime.

It is a Duffinian number.

93999999 is a modest number, since divided by 9999 gives 9399 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93999979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15666664 + ... + 15666669.

It is an arithmetic number, because the mean of its divisors is an integer number (31333334).

Almost surely, 2^93999999 is an apocalyptic number.

93999999 is a deficient number, since it is larger than the sum of its proper divisors (31333337).

93999999 is a wasteful number, since it uses less digits than its factorization.

93999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31333336.

The product of its digits is 14348907, while the sum is 66.

The square root of 93999999 is about 9695.3596632616. The cubic root of 93999999 is about 454.6835927653.

The spelling of 93999999 in words is "ninety-three million, nine hundred ninety-nine thousand, nine hundred ninety-nine".