63297649 has 2 divisors, whose sum is σ = 63297650. Its totient is φ = 63297648.

The previous prime is 63297617. The next prime is 63297653. The reversal of 63297649 is 94679236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58752225 + 4545424 = 7665^2 + 2132^2 .

It is a cyclic number.

It is not a de Polignac number, because 63297649 - 2⁵ = 63297617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63297599 and 63297608.

It is not a weakly prime, because it can be changed into another prime (63297149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31648824 + 31648825.

It is an arithmetic number, because the mean of its divisors is an integer number (31648825).

Almost surely, 2^63297649 is an apocalyptic number.

It is an amenable number.

63297649 is a deficient number, since it is larger than the sum of its proper divisors (1).

63297649 is an equidigital number, since it uses as much as digits as its factorization.

63297649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 63297649 is about 7955.9819632777. The cubic root of 63297649 is about 398.5313832613.

The spelling of 63297649 in words is "sixty-three million, two hundred ninety-seven thousand, six hundred forty-nine".