20085099 has 8 divisors (see below), whose sum is σ = 26808720. Its totient is φ = 13375776.

The previous prime is 20085097. The next prime is 20085113. The reversal of 20085099 is 99058002.

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

It is not a de Polignac number, because 20085099 - 2¹ = 20085097 is a prime.

It is a super-2 number, since 2×20085099² = 806822403679602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20085097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309 + ... + 6345.

It is an arithmetic number, because the mean of its divisors is an integer number (3351090).

Almost surely, 2^20085099 is an apocalyptic number.

20085099 is a deficient number, since it is larger than the sum of its proper divisors (6723621).

20085099 is a wasteful number, since it uses less digits than its factorization.

20085099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 20085099 is about 4481.6402131363. The cubic root of 20085099 is about 271.8262072829.

The spelling of 20085099 in words is "twenty million, eighty-five thousand, ninety-nine".