63430331 has 4 divisors (see below), whose sum is σ = 63914664. Its totient is φ = 62946000.

The previous prime is 63430327. The next prime is 63430333. The reversal of 63430331 is 13303436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63430331 - 2² = 63430327 is a prime.

It is a super-2 number, since 2×63430331² = 8046813781539122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63430297 and 63430306.

It is not an unprimeable number, because it can be changed into a prime (63430333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241970 + ... + 242231.

It is an arithmetic number, because the mean of its divisors is an integer number (15978666).

Almost surely, 2^63430331 is an apocalyptic number.

63430331 is a deficient number, since it is larger than the sum of its proper divisors (484333).

63430331 is a wasteful number, since it uses less digits than its factorization.

63430331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484332.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 63430331 is about 7964.3161037216. The cubic root of 63430331 is about 398.8096507689.

Adding to 63430331 its reverse (13303436), we get a palindrome (76733767).

The spelling of 63430331 in words is "sixty-three million, four hundred thirty thousand, three hundred thirty-one".