20692339 has 2 divisors, whose sum is σ = 20692340. Its totient is φ = 20692338.

The previous prime is 20692327. The next prime is 20692363. The reversal of 20692339 is 93329602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20692339 - 2⁵ = 20692307 is a prime.

It is not a weakly prime, because it can be changed into another prime (20692319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10346169 + 10346170.

It is an arithmetic number, because the mean of its divisors is an integer number (10346170).

Almost surely, 2^20692339 is an apocalyptic number.

20692339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20692339 is an equidigital number, since it uses as much as digits as its factorization.

20692339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 20692339 is about 4548.8832695509. The cubic root of 20692339 is about 274.5384610835.

The spelling of 20692339 in words is "twenty million, six hundred ninety-two thousand, three hundred thirty-nine".