63321613 has 8 divisors (see below), whose sum is σ = 64235808. Its totient is φ = 62411184.

The previous prime is 63321593. The next prime is 63321641. The reversal of 63321613 is 31612336.

63321613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 63321613 - 2¹³ = 63313421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63321653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56131 + ... + 57247.

It is an arithmetic number, because the mean of its divisors is an integer number (8029476).

Almost surely, 2^63321613 is an apocalyptic number.

It is an amenable number.

63321613 is a deficient number, since it is larger than the sum of its proper divisors (914195).

63321613 is a wasteful number, since it uses less digits than its factorization.

63321613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883.

The product of its digits is 1944, while the sum is 25.

The square root of 63321613 is about 7957.4878573580. The cubic root of 63321613 is about 398.5816705481.

Adding to 63321613 its reverse (31612336), we get a palindrome (94933949).

The spelling of 63321613 in words is "sixty-three million, three hundred twenty-one thousand, six hundred thirteen".