63450321 has 16 divisors (see below), whose sum is σ = 93210048. Its totient is φ = 38072000.

The previous prime is 63450313. The next prime is 63450371. The reversal of 63450321 is 12305436.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63450321 - 2³ = 63450313 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 63450291 and 63450300.

It is not an unprimeable number, because it can be changed into a prime (63450371) 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, 6186 + ... + 12851.

It is an arithmetic number, because the mean of its divisors is an integer number (5825628).

Almost surely, 2^63450321 is an apocalyptic number.

It is an amenable number.

63450321 is a deficient number, since it is larger than the sum of its proper divisors (29759727).

63450321 is a wasteful number, since it uses less digits than its factorization.

63450321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19152.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 63450321 is about 7965.5709776513. The cubic root of 63450321 is about 398.8515411783.

Adding to 63450321 its reverse (12305436), we get a palindrome (75755757).

The spelling of 63450321 in words is "sixty-three million, four hundred fifty thousand, three hundred twenty-one".