47646847 has 2 divisors, whose sum is σ = 47646848. Its totient is φ = 47646846.

The previous prime is 47646829. The next prime is 47646871. The reversal of 47646847 is 74864674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47646847 - 2⁷ = 47646719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47646797 and 47646806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47646817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23823423 + 23823424.

It is an arithmetic number, because the mean of its divisors is an integer number (23823424).

Almost surely, 2^47646847 is an apocalyptic number.

47646847 is a deficient number, since it is larger than the sum of its proper divisors (1).

47646847 is an equidigital number, since it uses as much as digits as its factorization.

47646847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 46.

The square root of 47646847 is about 6902.6695560486. The cubic root of 47646847 is about 362.5306437828.

It can be divided in two parts, 4764 and 6847, that added together give a palindrome (11611).

The spelling of 47646847 in words is "forty-seven million, six hundred forty-six thousand, eight hundred forty-seven".