20223629 has 2 divisors, whose sum is σ = 20223630. Its totient is φ = 20223628.

The previous prime is 20223617. The next prime is 20223661. The reversal of 20223629 is 92632202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13322500 + 6901129 = 3650^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223629 - 2¹⁶ = 20158093 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20223598 and 20223607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20225629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111814 + 10111815.

It is an arithmetic number, because the mean of its divisors is an integer number (10111815).

Almost surely, 2^20223629 is an apocalyptic number.

It is an amenable number.

20223629 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223629 is an equidigital number, since it uses as much as digits as its factorization.

20223629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20223629 is about 4497.0689343171. The cubic root of 20223629 is about 272.4497182988.

The spelling of 20223629 in words is "twenty million, two hundred twenty-three thousand, six hundred twenty-nine".