47066869 has 2 divisors, whose sum is σ = 47066870. Its totient is φ = 47066868.

The previous prime is 47066867. The next prime is 47066879. The reversal of 47066869 is 96866074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29844369 + 17222500 = 5463^2 + 4150^2 .

It is a cyclic number.

It is not a de Polignac number, because 47066869 - 2¹ = 47066867 is a prime.

It is a super-3 number, since 3×47066869³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 47066867, 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 (47066867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23533434 + 23533435.

It is an arithmetic number, because the mean of its divisors is an integer number (23533435).

Almost surely, 2^47066869 is an apocalyptic number.

It is an amenable number.

47066869 is a deficient number, since it is larger than the sum of its proper divisors (1).

47066869 is an equidigital number, since it uses as much as digits as its factorization.

47066869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 47066869 is about 6860.5297900381. The cubic root of 47066869 is about 361.0536748483.

The spelling of 47066869 in words is "forty-seven million, sixty-six thousand, eight hundred sixty-nine".