47646481 has 2 divisors, whose sum is σ = 47646482. Its totient is φ = 47646480.

The previous prime is 47646479. The next prime is 47646499. The reversal of 47646481 is 18464674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 36481 = 6900^2 + 191^2 .

It is a cyclic number.

It is not a de Polignac number, because 47646481 - 2¹ = 47646479 is a prime.

It is a super-2 number, since 2×47646481² = 4540374303366722, which contains 22 as substring.

Together with 47646479, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47646421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23823240 + 23823241.

It is an arithmetic number, because the mean of its divisors is an integer number (23823241).

Almost surely, 2^47646481 is an apocalyptic number.

It is an amenable number.

47646481 is a deficient number, since it is larger than the sum of its proper divisors (1).

47646481 is an equidigital number, since it uses as much as digits as its factorization.

47646481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 47646481 is about 6902.6430445156. The cubic root of 47646481 is about 362.5297155189.

The spelling of 47646481 in words is "forty-seven million, six hundred forty-six thousand, four hundred eighty-one".