20652923 has 2 divisors, whose sum is σ = 20652924. Its totient is φ = 20652922.

The previous prime is 20652917. The next prime is 20652967. The reversal of 20652923 is 32925602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20652923 - 2⁶ = 20652859 is a prime.

It is not a weakly prime, because it can be changed into another prime (20652323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10326461 + 10326462.

It is an arithmetic number, because the mean of its divisors is an integer number (10326462).

Almost surely, 2^20652923 is an apocalyptic number.

20652923 is a deficient number, since it is larger than the sum of its proper divisors (1).

20652923 is an equidigital number, since it uses as much as digits as its factorization.

20652923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 20652923 is about 4544.5487124686. The cubic root of 20652923 is about 274.3640312100.

The spelling of 20652923 in words is "twenty million, six hundred fifty-two thousand, nine hundred twenty-three".