63949601 has 2 divisors, whose sum is σ = 63949602. Its totient is φ = 63949600.

The previous prime is 63949583. The next prime is 63949607. The reversal of 63949601 is 10694936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62031376 + 1918225 = 7876^2 + 1385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63949601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63949607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31974800 + 31974801.

It is an arithmetic number, because the mean of its divisors is an integer number (31974801).

Almost surely, 2^63949601 is an apocalyptic number.

It is an amenable number.

63949601 is a deficient number, since it is larger than the sum of its proper divisors (1).

63949601 is an equidigital number, since it uses as much as digits as its factorization.

63949601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 63949601 is about 7996.8494421241. The cubic root of 63949601 is about 399.8949745099.

The spelling of 63949601 in words is "sixty-three million, nine hundred forty-nine thousand, six hundred one".