47307811 has 2 divisors, whose sum is σ = 47307812. Its totient is φ = 47307810.

The previous prime is 47307791. The next prime is 47307817. The reversal of 47307811 is 11870374.

47307811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47307811 - 2¹³ = 47299619 is a prime.

It is a super-2 number, since 2×47307811² = 4476057963223442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47307817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23653905 + 23653906.

It is an arithmetic number, because the mean of its divisors is an integer number (23653906).

Almost surely, 2^47307811 is an apocalyptic number.

47307811 is a deficient number, since it is larger than the sum of its proper divisors (1).

47307811 is an equidigital number, since it uses as much as digits as its factorization.

47307811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 47307811 is about 6878.0673884457. The cubic root of 47307811 is about 361.6687215817.

The spelling of 47307811 in words is "forty-seven million, three hundred seven thousand, eight hundred eleven".