20339167 has 2 divisors, whose sum is σ = 20339168. Its totient is φ = 20339166.

The previous prime is 20339149. The next prime is 20339171. The reversal of 20339167 is 76193302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20339167 - 2¹⁵ = 20306399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20339147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10169583 + 10169584.

It is an arithmetic number, because the mean of its divisors is an integer number (10169584).

Almost surely, 2^20339167 is an apocalyptic number.

20339167 is a deficient number, since it is larger than the sum of its proper divisors (1).

20339167 is an equidigital number, since it uses as much as digits as its factorization.

20339167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 20339167 is about 4509.8965620067. The cubic root of 20339167 is about 272.9675702912.

The spelling of 20339167 in words is "twenty million, three hundred thirty-nine thousand, one hundred sixty-seven".