20089339 has 2 divisors, whose sum is σ = 20089340. Its totient is φ = 20089338.

The previous prime is 20089337. The next prime is 20089367. The reversal of 20089339 is 93398002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20089339 - 2¹ = 20089337 is a prime.

Together with 20089337, it forms a pair of twin primes.

It is equal to p_1275946 and since 20089339 and 1275946 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20089337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10044669 + 10044670.

It is an arithmetic number, because the mean of its divisors is an integer number (10044670).

Almost surely, 2^20089339 is an apocalyptic number.

20089339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20089339 is an equidigital number, since it uses as much as digits as its factorization.

20089339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 20089339 is about 4482.1132292703. The cubic root of 20089339 is about 271.8453336018.

The spelling of 20089339 in words is "twenty million, eighty-nine thousand, three hundred thirty-nine".