47070913 has 2 divisors, whose sum is σ = 47070914. Its totient is φ = 47070912.

The previous prime is 47070901. The next prime is 47070929. The reversal of 47070913 is 31907074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43138624 + 3932289 = 6568^2 + 1983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47070913 is a prime.

It is not a weakly prime, because it can be changed into another prime (47010913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23535456 + 23535457.

It is an arithmetic number, because the mean of its divisors is an integer number (23535457).

Almost surely, 2^47070913 is an apocalyptic number.

It is an amenable number.

47070913 is a deficient number, since it is larger than the sum of its proper divisors (1).

47070913 is an equidigital number, since it uses as much as digits as its factorization.

47070913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 47070913 is about 6860.8245131325. The cubic root of 47070913 is about 361.0640151668.

Adding to 47070913 its reverse (31907074), we get a palindrome (78977987).

The spelling of 47070913 in words is "forty-seven million, seventy thousand, nine hundred thirteen".