9993905 has 8 divisors (see below), whose sum is σ = 12624000. Its totient is φ = 7574256.

The previous prime is 9993901. The next prime is 9993911. The reversal of 9993905 is 5093999.

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

It is a cyclic number.

It is not a de Polignac number, because 9993905 - 2² = 9993901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9993901) 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, 52505 + ... + 52694.

It is an arithmetic number, because the mean of its divisors is an integer number (1578000).

Almost surely, 2^9993905 is an apocalyptic number.

9993905 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9993905 is a deficient number, since it is larger than the sum of its proper divisors (2630095).

9993905 is a wasteful number, since it uses less digits than its factorization.

9993905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105223.

The product of its (nonzero) digits is 98415, while the sum is 44.

The square root of 9993905 is about 3161.3138091623. The cubic root of 9993905 is about 215.3996891759.

The spelling of 9993905 in words is "nine million, nine hundred ninety-three thousand, nine hundred five".