20622023 has 2 divisors, whose sum is σ = 20622024. Its totient is φ = 20622022.

The previous prime is 20622001. The next prime is 20622029. The reversal of 20622023 is 32022602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20622023 - 2⁶ = 20621959 is a prime.

It is a super-2 number, since 2×20622023² = 850535665225058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20621992 and 20622010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20622029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10311011 + 10311012.

It is an arithmetic number, because the mean of its divisors is an integer number (10311012).

Almost surely, 2^20622023 is an apocalyptic number.

20622023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20622023 is an equidigital number, since it uses as much as digits as its factorization.

20622023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20622023 is about 4541.1477624054. The cubic root of 20622023 is about 274.2271324259.

Adding to 20622023 its reverse (32022602), we get a palindrome (52644625).

The spelling of 20622023 in words is "twenty million, six hundred twenty-two thousand, twenty-three".