47765539 has 2 divisors, whose sum is σ = 47765540. Its totient is φ = 47765538.

The previous prime is 47765537. The next prime is 47765569. The reversal of 47765539 is 93556774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47765539 - 2¹ = 47765537 is a prime.

Together with 47765537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47765537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23882769 + 23882770.

It is an arithmetic number, because the mean of its divisors is an integer number (23882770).

Almost surely, 2^47765539 is an apocalyptic number.

47765539 is a deficient number, since it is larger than the sum of its proper divisors (1).

47765539 is an equidigital number, since it uses as much as digits as its factorization.

47765539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 46.

The square root of 47765539 is about 6911.2617516630. The cubic root of 47765539 is about 362.8314248370.

The spelling of 47765539 in words is "forty-seven million, seven hundred sixty-five thousand, five hundred thirty-nine".