47117867 has 2 divisors, whose sum is σ = 47117868. Its totient is φ = 47117866.

The previous prime is 47117857. The next prime is 47117879. The reversal of 47117867 is 76871174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47117867 - 2¹² = 47113771 is a prime.

It is not a weakly prime, because it can be changed into another prime (47117857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23558933 + 23558934.

It is an arithmetic number, because the mean of its divisors is an integer number (23558934).

Almost surely, 2^47117867 is an apocalyptic number.

47117867 is a deficient number, since it is larger than the sum of its proper divisors (1).

47117867 is an equidigital number, since it uses as much as digits as its factorization.

47117867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 41.

The square root of 47117867 is about 6864.2455521346. The cubic root of 47117867 is about 361.1840310090.

The spelling of 47117867 in words is "forty-seven million, one hundred seventeen thousand, eight hundred sixty-seven".