47709523 has 2 divisors, whose sum is σ = 47709524. Its totient is φ = 47709522.

The previous prime is 47709511. The next prime is 47709581. The reversal of 47709523 is 32590774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47709523 - 2⁵ = 47709491 is a prime.

It is not a weakly prime, because it can be changed into another prime (47709923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23854761 + 23854762.

It is an arithmetic number, because the mean of its divisors is an integer number (23854762).

Almost surely, 2^47709523 is an apocalyptic number.

47709523 is a deficient number, since it is larger than the sum of its proper divisors (1).

47709523 is an equidigital number, since it uses as much as digits as its factorization.

47709523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 47709523 is about 6907.2080466712. The cubic root of 47709523 is about 362.6895351282.

The spelling of 47709523 in words is "forty-seven million, seven hundred nine thousand, five hundred twenty-three".