63847349 has 2 divisors, whose sum is σ = 63847350. Its totient is φ = 63847348.

The previous prime is 63847327. The next prime is 63847369. The reversal of 63847349 is 94374836.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50836900 + 13010449 = 7130^2 + 3607^2 .

It is a cyclic number.

It is not a de Polignac number, because 63847349 - 2²⁰ = 62798773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63847309) 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, 31923674 + 31923675.

It is an arithmetic number, because the mean of its divisors is an integer number (31923675).

Almost surely, 2^63847349 is an apocalyptic number.

It is an amenable number.

63847349 is a deficient number, since it is larger than the sum of its proper divisors (1).

63847349 is an equidigital number, since it uses as much as digits as its factorization.

63847349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 63847349 is about 7990.4536166603. The cubic root of 63847349 is about 399.6817239013.

The spelling of 63847349 in words is "sixty-three million, eight hundred forty-seven thousand, three hundred forty-nine".