63413321 has 4 divisors (see below), whose sum is σ = 65458944. Its totient is φ = 61367700.

The previous prime is 63413309. The next prime is 63413341. The reversal of 63413321 is 12331436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63413321 - 2¹⁸ = 63151177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63413341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022765 + ... + 1022826.

It is an arithmetic number, because the mean of its divisors is an integer number (16364736).

Almost surely, 2^63413321 is an apocalyptic number.

It is an amenable number.

63413321 is a deficient number, since it is larger than the sum of its proper divisors (2045623).

63413321 is a wasteful number, since it uses less digits than its factorization.

63413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045622.

The product of its digits is 1296, while the sum is 23.

The square root of 63413321 is about 7963.2481438167. The cubic root of 63413321 is about 398.7739982216.

Adding to 63413321 its reverse (12331436), we get a palindrome (75744757).

The spelling of 63413321 in words is "sixty-three million, four hundred thirteen thousand, three hundred twenty-one".