63913271 has 2 divisors, whose sum is σ = 63913272. Its totient is φ = 63913270.

The previous prime is 63913259. The next prime is 63913309. The reversal of 63913271 is 17231936.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63913271 - 2¹⁸ = 63651127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63913211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31956635 + 31956636.

It is an arithmetic number, because the mean of its divisors is an integer number (31956636).

Almost surely, 2^63913271 is an apocalyptic number.

63913271 is a deficient number, since it is larger than the sum of its proper divisors (1).

63913271 is an equidigital number, since it uses as much as digits as its factorization.

63913271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 32.

The square root of 63913271 is about 7994.5775998485. The cubic root of 63913271 is about 399.8192329038.

The spelling of 63913271 in words is "sixty-three million, nine hundred thirteen thousand, two hundred seventy-one".