63660349 has 2 divisors, whose sum is σ = 63660350. Its totient is φ = 63660348.

The previous prime is 63660323. The next prime is 63660361. The reversal of 63660349 is 94306636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50154724 + 13505625 = 7082^2 + 3675^2 .

It is a cyclic number.

It is not a de Polignac number, because 63660349 - 2⁷ = 63660221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63660319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31830174 + 31830175.

It is an arithmetic number, because the mean of its divisors is an integer number (31830175).

Almost surely, 2^63660349 is an apocalyptic number.

It is an amenable number.

63660349 is a deficient number, since it is larger than the sum of its proper divisors (1).

63660349 is an equidigital number, since it uses as much as digits as its factorization.

63660349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 63660349 is about 7978.7435727688. The cubic root of 63660349 is about 399.2911382797.

It can be divided in two parts, 63660 and 349, that added together give a square (64009 = 253²).

The spelling of 63660349 in words is "sixty-three million, six hundred sixty thousand, three hundred forty-nine".