20932069 has 2 divisors, whose sum is σ = 20932070. Its totient is φ = 20932068.

The previous prime is 20932039. The next prime is 20932103. The reversal of 20932069 is 96023902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20930625 + 1444 = 4575^2 + 38^2 .

It is a cyclic number.

It is not a de Polignac number, because 20932069 - 2⁷ = 20931941 is a prime.

It is a super-2 number, since 2×20932069² = 876303025241522, which contains 22 as substring.

It is equal to p_1325938 and since 20932069 and 1325938 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20932069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20932039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10466034 + 10466035.

It is an arithmetic number, because the mean of its divisors is an integer number (10466035).

Almost surely, 2^20932069 is an apocalyptic number.

It is an amenable number.

20932069 is a deficient number, since it is larger than the sum of its proper divisors (1).

20932069 is an equidigital number, since it uses as much as digits as its factorization.

20932069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 20932069 is about 4575.1578114859. The cubic root of 20932069 is about 275.5946098163.

The spelling of 20932069 in words is "twenty million, nine hundred thirty-two thousand, sixty-nine".