20411329 has 2 divisors, whose sum is σ = 20411330. Its totient is φ = 20411328.

The previous prime is 20411323. The next prime is 20411333. The reversal of 20411329 is 92311402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16200625 + 4210704 = 4025^2 + 2052^2 .

It is a cyclic number.

It is not a de Polignac number, because 20411329 - 2¹³ = 20403137 is a prime.

It is not a weakly prime, because it can be changed into another prime (20411323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205664 + 10205665.

It is an arithmetic number, because the mean of its divisors is an integer number (10205665).

Almost surely, 2^20411329 is an apocalyptic number.

It is an amenable number.

20411329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411329 is an equidigital number, since it uses as much as digits as its factorization.

20411329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20411329 is about 4517.8898835629. The cubic root of 20411329 is about 273.2900127987.

The spelling of 20411329 in words is "twenty million, four hundred eleven thousand, three hundred twenty-nine".