63791471 has 2 divisors, whose sum is σ = 63791472. Its totient is φ = 63791470.

The previous prime is 63791407. The next prime is 63791477. The reversal of 63791471 is 17419736.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63791471 - 2⁶ = 63791407 is a prime.

It is a super-3 number, since 3×63791471³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63791477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31895735 + 31895736.

It is an arithmetic number, because the mean of its divisors is an integer number (31895736).

Almost surely, 2^63791471 is an apocalyptic number.

63791471 is a deficient number, since it is larger than the sum of its proper divisors (1).

63791471 is an equidigital number, since it uses as much as digits as its factorization.

63791471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 63791471 is about 7986.9563038745. The cubic root of 63791471 is about 399.5650918921.

The spelling of 63791471 in words is "sixty-three million, seven hundred ninety-one thousand, four hundred seventy-one".