10099999 has 8 divisors (see below), whose sum is σ = 12430880. Its totient is φ = 7991136.

The previous prime is 10099997. The next prime is 10100009. The reversal of 10099999 is 99999001.

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 10099999 - 2¹ = 10099997 is a prime.

10099999 is a modest number, since divided by 9999 gives 1009 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10099997) 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, 55404 + ... + 55585.

It is an arithmetic number, because the mean of its divisors is an integer number (1553860).

Almost surely, 2^10099999 is an apocalyptic number.

10099999 is a deficient number, since it is larger than the sum of its proper divisors (2330881).

10099999 is a wasteful number, since it uses less digits than its factorization.

10099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111009.

The product of its (nonzero) digits is 59049, while the sum is 46.

The square root of 10099999 is about 3178.0495590849. The cubic root of 10099999 is about 216.1592261605.

The spelling of 10099999 in words is "ten million, ninety-nine thousand, nine hundred ninety-nine".