20464211 has 2 divisors, whose sum is σ = 20464212. Its totient is φ = 20464210.

The previous prime is 20464193. The next prime is 20464217. The reversal of 20464211 is 11246402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20464211 - 2¹⁴ = 20447827 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20464217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10232105 + 10232106.

It is an arithmetic number, because the mean of its divisors is an integer number (10232106).

Almost surely, 2^20464211 is an apocalyptic number.

20464211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20464211 is an equidigital number, since it uses as much as digits as its factorization.

20464211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 20464211 is about 4523.7386087174. The cubic root of 20464211 is about 273.5258239906.

The spelling of 20464211 in words is "twenty million, four hundred sixty-four thousand, two hundred eleven".