20099307 has 8 divisors (see below), whose sum is σ = 27452880. Its totient is φ = 13072640.

The previous prime is 20099269. The next prime is 20099311. The reversal of 20099307 is 70399002.

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 20099307 - 2¹² = 20095211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20099357) 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, 81582 + ... + 81827.

It is an arithmetic number, because the mean of its divisors is an integer number (3431610).

Almost surely, 2^20099307 is an apocalyptic number.

20099307 is a deficient number, since it is larger than the sum of its proper divisors (7353573).

20099307 is a wasteful number, since it uses less digits than its factorization.

20099307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163453.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 20099307 is about 4483.2250668464. The cubic root of 20099307 is about 271.8902878971.

The spelling of 20099307 in words is "twenty million, ninety-nine thousand, three hundred seven".