63788449 has 2 divisors, whose sum is σ = 63788450. Its totient is φ = 63788448.

The previous prime is 63788443. The next prime is 63788467. The reversal of 63788449 is 94488736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63760225 + 28224 = 7985^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 63788449 - 2³ = 63788441 is a prime.

It is not a weakly prime, because it can be changed into another prime (63788441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31894224 + 31894225.

It is an arithmetic number, because the mean of its divisors is an integer number (31894225).

Almost surely, 2^63788449 is an apocalyptic number.

It is an amenable number.

63788449 is a deficient number, since it is larger than the sum of its proper divisors (1).

63788449 is an equidigital number, since it uses as much as digits as its factorization.

63788449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 49.

The square root of 63788449 is about 7986.7671181774. The cubic root of 63788449 is about 399.5587822462.

The spelling of 63788449 in words is "sixty-three million, seven hundred eighty-eight thousand, four hundred forty-nine".