47404213 has 2 divisors, whose sum is σ = 47404214. Its totient is φ = 47404212.

The previous prime is 47404193. The next prime is 47404237. The reversal of 47404213 is 31240474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39967684 + 7436529 = 6322^2 + 2727^2 .

It is a cyclic number.

It is not a de Polignac number, because 47404213 - 2¹³ = 47396021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47404283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23702106 + 23702107.

It is an arithmetic number, because the mean of its divisors is an integer number (23702107).

Almost surely, 2^47404213 is an apocalyptic number.

It is an amenable number.

47404213 is a deficient number, since it is larger than the sum of its proper divisors (1).

47404213 is an equidigital number, since it uses as much as digits as its factorization.

47404213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 47404213 is about 6885.0717498077. The cubic root of 47404213 is about 361.9142196757.

Adding to 47404213 its reverse (31240474), we get a palindrome (78644687).

The spelling of 47404213 in words is "forty-seven million, four hundred four thousand, two hundred thirteen".