47471617 has 2 divisors, whose sum is σ = 47471618. Its totient is φ = 47471616.

The previous prime is 47471591. The next prime is 47471651. The reversal of 47471617 is 71617474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44635761 + 2835856 = 6681^2 + 1684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47471617 is a prime.

It is not a weakly prime, because it can be changed into another prime (47471687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23735808 + 23735809.

It is an arithmetic number, because the mean of its divisors is an integer number (23735809).

Almost surely, 2^47471617 is an apocalyptic number.

It is an amenable number.

47471617 is a deficient number, since it is larger than the sum of its proper divisors (1).

47471617 is an equidigital number, since it uses as much as digits as its factorization.

47471617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 37.

The square root of 47471617 is about 6889.9649491126. The cubic root of 47471617 is about 362.0856735859.

The spelling of 47471617 in words is "forty-seven million, four hundred seventy-one thousand, six hundred seventeen".