47066989 has 2 divisors, whose sum is σ = 47066990. Its totient is φ = 47066988.

The previous prime is 47066953. The next prime is 47067037. The reversal of 47066989 is 98966074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 2377764 = 6685^2 + 1542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47066989 is a prime.

It is a super-2 number, since 2×47066989² = 4430602907052242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47066939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23533494 + 23533495.

It is an arithmetic number, because the mean of its divisors is an integer number (23533495).

Almost surely, 2^47066989 is an apocalyptic number.

It is an amenable number.

47066989 is a deficient number, since it is larger than the sum of its proper divisors (1).

47066989 is an equidigital number, since it uses as much as digits as its factorization.

47066989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 47066989 is about 6860.5385357128. The cubic root of 47066989 is about 361.0539816912.

The spelling of 47066989 in words is "forty-seven million, sixty-six thousand, nine hundred eighty-nine".