20208107 has 8 divisors (see below), whose sum is σ = 20547072. Its totient is φ = 19872000.

The previous prime is 20208101. The next prime is 20208109. The reversal of 20208107 is 70180202.

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 20208107 - 2⁶ = 20208043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20208101) 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, 16982 + ... + 18132.

It is an arithmetic number, because the mean of its divisors is an integer number (2568384).

Almost surely, 2^20208107 is an apocalyptic number.

20208107 is a deficient number, since it is larger than the sum of its proper divisors (338965).

20208107 is a wasteful number, since it uses less digits than its factorization.

20208107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 20208107 is about 4495.3428122892. The cubic root of 20208107 is about 272.3799971008.

Adding to 20208107 its reverse (70180202), we get a palindrome (90388309).

The spelling of 20208107 in words is "twenty million, two hundred eight thousand, one hundred seven".