47047751 has 2 divisors, whose sum is σ = 47047752. Its totient is φ = 47047750.

The previous prime is 47047727. The next prime is 47047771. The reversal of 47047751 is 15774074.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47047751 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47047711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23523875 + 23523876.

It is an arithmetic number, because the mean of its divisors is an integer number (23523876).

Almost surely, 2^47047751 is an apocalyptic number.

47047751 is a deficient number, since it is larger than the sum of its proper divisors (1).

47047751 is an equidigital number, since it uses as much as digits as its factorization.

47047751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 47047751 is about 6859.1363158928. The cubic root of 47047751 is about 361.0047829979.

The spelling of 47047751 in words is "forty-seven million, forty-seven thousand, seven hundred fifty-one".