63646363 has 12 divisors (see below), whose sum is σ = 71113504. Its totient is φ = 56905200.

The previous prime is 63646361. The next prime is 63646367. The reversal of 63646363 is 36364636.

It is not a de Polignac number, because 63646363 - 2¹ = 63646361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63646361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3070 + ... + 11692.

Almost surely, 2^63646363 is an apocalyptic number.

63646363 is a deficient number, since it is larger than the sum of its proper divisors (7467141).

63646363 is a wasteful number, since it uses less digits than its factorization.

63646363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8706 (or 8695 counting only the distinct ones).

The product of its digits is 139968, while the sum is 37.

The square root of 63646363 is about 7977.8670708404. The cubic root of 63646363 is about 399.2618950906.

It can be divided in two parts, 63646 and 363, that added together give a square (64009 = 253²).

The spelling of 63646363 in words is "sixty-three million, six hundred forty-six thousand, three hundred sixty-three".