47646791 has 2 divisors, whose sum is σ = 47646792. Its totient is φ = 47646790.

The previous prime is 47646761. The next prime is 47646793. The reversal of 47646791 is 19764674.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47646791 - 2⁶ = 47646727 is a prime.

Together with 47646793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47646793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23823395 + 23823396.

It is an arithmetic number, because the mean of its divisors is an integer number (23823396).

Almost surely, 2^47646791 is an apocalyptic number.

47646791 is a deficient number, since it is larger than the sum of its proper divisors (1).

47646791 is an equidigital number, since it uses as much as digits as its factorization.

47646791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 47646791 is about 6902.6654996458. The cubic root of 47646791 is about 362.5305017537.

The spelling of 47646791 in words is "forty-seven million, six hundred forty-six thousand, seven hundred ninety-one".