20307099 has 8 divisors (see below), whose sum is σ = 27274320. Its totient is φ = 13438976.

The previous prime is 20307071. The next prime is 20307103. The reversal of 20307099 is 99070302.

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 20307099 - 2⁷ = 20306971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20307059) 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, 24294 + ... + 25115.

It is an arithmetic number, because the mean of its divisors is an integer number (3409290).

Almost surely, 2^20307099 is an apocalyptic number.

20307099 is a deficient number, since it is larger than the sum of its proper divisors (6967221).

20307099 is a wasteful number, since it uses less digits than its factorization.

20307099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49549.

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

The square root of 20307099 is about 4506.3398673425. The cubic root of 20307099 is about 272.8240355940.

The spelling of 20307099 in words is "twenty million, three hundred seven thousand, ninety-nine".