47264209 has 2 divisors, whose sum is σ = 47264210. Its totient is φ = 47264208.

The previous prime is 47264201. The next prime is 47264219. The reversal of 47264209 is 90246274.

47264209 is nontrivially palindromic in base 15.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45859984 + 1404225 = 6772^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 47264209 - 2³ = 47264201 is a prime.

It is equal to p_2846581 and since 47264209 and 2846581 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47264201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23632104 + 23632105.

It is an arithmetic number, because the mean of its divisors is an integer number (23632105).

Almost surely, 2^47264209 is an apocalyptic number.

It is an amenable number.

47264209 is a deficient number, since it is larger than the sum of its proper divisors (1).

47264209 is an equidigital number, since it uses as much as digits as its factorization.

47264209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 47264209 is about 6874.8970174105. The cubic root of 47264209 is about 361.5575748424.

The spelling of 47264209 in words is "forty-seven million, two hundred sixty-four thousand, two hundred nine".