63241391 has 2 divisors, whose sum is σ = 63241392. Its totient is φ = 63241390.

The previous prime is 63241379. The next prime is 63241417. The reversal of 63241391 is 19314236.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63241391 is a prime.

It is a super-2 number, since 2×63241391² = 7998947071229762, which contains 22 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 (63211391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31620695 + 31620696.

It is an arithmetic number, because the mean of its divisors is an integer number (31620696).

Almost surely, 2^63241391 is an apocalyptic number.

63241391 is a deficient number, since it is larger than the sum of its proper divisors (1).

63241391 is an equidigital number, since it uses as much as digits as its factorization.

63241391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 63241391 is about 7952.4455986822. The cubic root of 63241391 is about 398.4132786947.

The spelling of 63241391 in words is "sixty-three million, two hundred forty-one thousand, three hundred ninety-one".