47069261 has 2 divisors, whose sum is σ = 47069262. Its totient is φ = 47069260.

The previous prime is 47069221. The next prime is 47069317. The reversal of 47069261 is 16296074.

47069261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31427236 + 15642025 = 5606^2 + 3955^2 .

It is a cyclic number.

It is not a de Polignac number, because 47069261 - 2²² = 42874957 is a prime.

It is a super-2 number, since 2×47069261² = 4431030662172242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47069221) 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, 23534630 + 23534631.

It is an arithmetic number, because the mean of its divisors is an integer number (23534631).

Almost surely, 2^47069261 is an apocalyptic number.

It is an amenable number.

47069261 is a deficient number, since it is larger than the sum of its proper divisors (1).

47069261 is an equidigital number, since it uses as much as digits as its factorization.

47069261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 47069261 is about 6860.7041183832. The cubic root of 47069261 is about 361.0597911518.

The spelling of 47069261 in words is "forty-seven million, sixty-nine thousand, two hundred sixty-one".