8681047 has 2 divisors, whose sum is σ = 8681048. Its totient is φ = 8681046.

The previous prime is 8681021. The next prime is 8681059. The reversal of 8681047 is 7401868.

It is a happy number.

8681047 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 a de Polignac number, because none of the positive numbers 2^k-8681047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8681077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4340523 + 4340524.

It is an arithmetic number, because the mean of its divisors is an integer number (4340524).

Almost surely, 2^8681047 is an apocalyptic number.

8681047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8681047 is an equidigital number, since it uses as much as digits as its factorization.

8681047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 8681047 is about 2946.3616546514. The cubic root of 8681047 is about 205.5215512076.

The spelling of 8681047 in words is "eight million, six hundred eighty-one thousand, forty-seven".