63480321 has 16 divisors (see below), whose sum is σ = 95589120. Its totient is φ = 41625360.

The previous prime is 63480317. The next prime is 63480331. The reversal of 63480321 is 12308436.

It is a happy number.

63480321 is a `hidden beast` number, since 634 + 8 + 0 + 3 + 21 = 666.

It is not a de Polignac number, because 63480321 - 2² = 63480317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (63480331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17625 + ... + 20918.

It is an arithmetic number, because the mean of its divisors is an integer number (5974320).

Almost surely, 2^63480321 is an apocalyptic number.

63480321 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

63480321 is a deficient number, since it is larger than the sum of its proper divisors (32108799).

63480321 is a wasteful number, since it uses less digits than its factorization.

63480321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38613 (or 38607 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 63480321 is about 7967.4538592953. The cubic root of 63480321 is about 398.9143917188.

Adding to 63480321 its reverse (12308436), we get a palindrome (75788757).

The spelling of 63480321 in words is "sixty-three million, four hundred eighty thousand, three hundred twenty-one".