63361643 has 8 divisors (see below), whose sum is σ = 64223280. Its totient is φ = 62504800.

The previous prime is 63361633. The next prime is 63361651. The reversal of 63361643 is 34616336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63361643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63361603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31028 + ... + 33006.

It is an arithmetic number, because the mean of its divisors is an integer number (8027910).

Almost surely, 2^63361643 is an apocalyptic number.

63361643 is a deficient number, since it is larger than the sum of its proper divisors (861637).

63361643 is a wasteful number, since it uses less digits than its factorization.

63361643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397.

The product of its digits is 23328, while the sum is 32.

The square root of 63361643 is about 7960.0027010046. The cubic root of 63361643 is about 398.6656432632.

Adding to 63361643 its reverse (34616336), we get a palindrome (97977979).

The spelling of 63361643 in words is "sixty-three million, three hundred sixty-one thousand, six hundred forty-three".