47068729 has 2 divisors, whose sum is σ = 47068730. Its totient is φ = 47068728.

The previous prime is 47068709. The next prime is 47068781. The reversal of 47068729 is 92786074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38378025 + 8690704 = 6195^2 + 2948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47068729 is a prime.

It is not a weakly prime, because it can be changed into another prime (47068709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23534364 + 23534365.

It is an arithmetic number, because the mean of its divisors is an integer number (23534365).

Almost surely, 2^47068729 is an apocalyptic number.

It is an amenable number.

47068729 is a deficient number, since it is larger than the sum of its proper divisors (1).

47068729 is an equidigital number, since it uses as much as digits as its factorization.

47068729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 47068729 is about 6860.6653467430. The cubic root of 47068729 is about 361.0584308547.

The spelling of 47068729 in words is "forty-seven million, sixty-eight thousand, seven hundred twenty-nine".