57947471 has 2 divisors, whose sum is σ = 57947472. Its totient is φ = 57947470.

The previous prime is 57947453. The next prime is 57947537. The reversal of 57947471 is 17474975.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57947471 is a prime.

It is a super-3 number, since 3×57947471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57947371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28973735 + 28973736.

It is an arithmetic number, because the mean of its divisors is an integer number (28973736).

Almost surely, 2^57947471 is an apocalyptic number.

57947471 is a deficient number, since it is larger than the sum of its proper divisors (1).

57947471 is an equidigital number, since it uses as much as digits as its factorization.

57947471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 57947471 is about 7612.3236268567. The cubic root of 57947471 is about 386.9707705602.

The spelling of 57947471 in words is "fifty-seven million, nine hundred forty-seven thousand, four hundred seventy-one".