47540617 has 2 divisors, whose sum is σ = 47540618. Its totient is φ = 47540616.

The previous prime is 47540611. The next prime is 47540651. The reversal of 47540617 is 71604574.

It is a happy number.

47540617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (47540651) can be obtained adding 47540617 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34152336 + 13388281 = 5844^2 + 3659^2 .

It is a cyclic number.

It is not a de Polignac number, because 47540617 - 2¹⁵ = 47507849 is a prime.

It is a super-2 number, since 2×47540617² = 4520220529481378, which contains 22 as substring.

It is equal to p_2862259 and since 47540617 and 2862259 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47540611) 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, 23770308 + 23770309.

It is an arithmetic number, because the mean of its divisors is an integer number (23770309).

Almost surely, 2^47540617 is an apocalyptic number.

It is an amenable number.

47540617 is a deficient number, since it is larger than the sum of its proper divisors (1).

47540617 is an equidigital number, since it uses as much as digits as its factorization.

47540617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 47540617 is about 6894.9704132795. The cubic root of 47540617 is about 362.2610191791.

The spelling of 47540617 in words is "forty-seven million, five hundred forty thousand, six hundred seventeen".