63271913 has 2 divisors, whose sum is σ = 63271914. Its totient is φ = 63271912.

The previous prime is 63271907. The next prime is 63271921. The reversal of 63271913 is 31917236.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53114944 + 10156969 = 7288^2 + 3187^2 .

It is a cyclic number.

It is not a de Polignac number, because 63271913 - 2⁸ = 63271657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63271913.

It is not a weakly prime, because it can be changed into another prime (63271903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31635956 + 31635957.

It is an arithmetic number, because the mean of its divisors is an integer number (31635957).

Almost surely, 2^63271913 is an apocalyptic number.

It is an amenable number.

63271913 is a deficient number, since it is larger than the sum of its proper divisors (1).

63271913 is an equidigital number, since it uses as much as digits as its factorization.

63271913 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 63271913 is about 7954.3643994979. The cubic root of 63271913 is about 398.4773633821.

The spelling of 63271913 in words is "sixty-three million, two hundred seventy-one thousand, nine hundred thirteen".