20089807 has 2 divisors, whose sum is σ = 20089808. Its totient is φ = 20089806.

The previous prime is 20089799. The next prime is 20089813. The reversal of 20089807 is 70898002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20089807 - 2³ = 20089799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20089007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10044903 + 10044904.

It is an arithmetic number, because the mean of its divisors is an integer number (10044904).

Almost surely, 2^20089807 is an apocalyptic number.

20089807 is a deficient number, since it is larger than the sum of its proper divisors (1).

20089807 is an equidigital number, since it uses as much as digits as its factorization.

20089807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 20089807 is about 4482.1654364827. The cubic root of 20089807 is about 271.8474445495.

The spelling of 20089807 in words is "twenty million, eighty-nine thousand, eight hundred seven".