47072111 has 2 divisors, whose sum is σ = 47072112. Its totient is φ = 47072110.

The previous prime is 47072107. The next prime is 47072119. The reversal of 47072111 is 11127074.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47072111 - 2² = 47072107 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47072119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23536055 + 23536056.

It is an arithmetic number, because the mean of its divisors is an integer number (23536056).

Almost surely, 2^47072111 is an apocalyptic number.

47072111 is a deficient number, since it is larger than the sum of its proper divisors (1).

47072111 is an equidigital number, since it uses as much as digits as its factorization.

47072111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 47072111 is about 6860.9118198677. The cubic root of 47072111 is about 361.0670782830.

Adding to 47072111 its reverse (11127074), we get a palindrome (58199185).

The spelling of 47072111 in words is "forty-seven million, seventy-two thousand, one hundred eleven".