47636213 has 2 divisors, whose sum is σ = 47636214. Its totient is φ = 47636212.

The previous prime is 47636209. The next prime is 47636221. The reversal of 47636213 is 31263674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46758244 + 877969 = 6838^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 47636213 - 2² = 47636209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47636213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47636713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23818106 + 23818107.

It is an arithmetic number, because the mean of its divisors is an integer number (23818107).

Almost surely, 2^47636213 is an apocalyptic number.

It is an amenable number.

47636213 is a deficient number, since it is larger than the sum of its proper divisors (1).

47636213 is an equidigital number, since it uses as much as digits as its factorization.

47636213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The square root of 47636213 is about 6901.8992313710. The cubic root of 47636213 is about 362.5036714650.

Adding to 47636213 its reverse (31263674), we get a palindrome (78899887).

The spelling of 47636213 in words is "forty-seven million, six hundred thirty-six thousand, two hundred thirteen".