63323993 has 8 divisors (see below), whose sum is σ = 66177408. Its totient is φ = 60533424.

The previous prime is 63323987. The next prime is 63323999. The reversal of 63323993 is 39932336.

It is an interprime number because it is at equal distance from previous prime (63323987) and next prime (63323999).

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 63323993 - 2⁸ = 63323737 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 (63323999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13646 + ... + 17687.

It is an arithmetic number, because the mean of its divisors is an integer number (8272176).

Almost surely, 2^63323993 is an apocalyptic number.

It is an amenable number.

63323993 is a deficient number, since it is larger than the sum of its proper divisors (2853415).

63323993 is a wasteful number, since it uses less digits than its factorization.

63323993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31423.

The product of its digits is 78732, while the sum is 38.

The square root of 63323993 is about 7957.6374006359. The cubic root of 63323993 is about 398.5866641695.

The spelling of 63323993 in words is "sixty-three million, three hundred twenty-three thousand, nine hundred ninety-three".