47366581 has 2 divisors, whose sum is σ = 47366582. Its totient is φ = 47366580.

The previous prime is 47366569. The next prime is 47366593. The reversal of 47366581 is 18566374.

It is a happy number.

47366581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (47366569) and next prime (47366593).

It can be written as a sum of positive squares in only one way, i.e., 40259025 + 7107556 = 6345^2 + 2666^2 .

It is a cyclic number.

It is not a de Polignac number, because 47366581 - 2¹⁷ = 47235509 is a prime.

It is a super-2 number, since 2×47366581² = 4487185991259122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47366531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23683290 + 23683291.

It is an arithmetic number, because the mean of its divisors is an integer number (23683291).

Almost surely, 2^47366581 is an apocalyptic number.

It is an amenable number.

47366581 is a deficient number, since it is larger than the sum of its proper divisors (1).

47366581 is an equidigital number, since it uses as much as digits as its factorization.

47366581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 47366581 is about 6882.3383380941. The cubic root of 47366581 is about 361.8184253667.

The spelling of 47366581 in words is "forty-seven million, three hundred sixty-six thousand, five hundred eighty-one".