10638321 has 8 divisors (see below), whose sum is σ = 14202240. Its totient is φ = 7083312.

The previous prime is 10638317. The next prime is 10638323. The reversal of 10638321 is 12383601.

10638321 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 10638321 - 2² = 10638317 is a prime.

It is a super-2 number, since 2×10638321² = 226347747398082, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10638291 and 10638300.

It is not an unprimeable number, because it can be changed into a prime (10638323) 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, 1411 + ... + 4823.

It is an arithmetic number, because the mean of its divisors is an integer number (1775280).

Almost surely, 2^10638321 is an apocalyptic number.

It is an amenable number.

10638321 is a deficient number, since it is larger than the sum of its proper divisors (3563919).

10638321 is a wasteful number, since it uses less digits than its factorization.

10638321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 10638321 is about 3261.6439106684. The cubic root of 10638321 is about 219.9333200123.

The spelling of 10638321 in words is "ten million, six hundred thirty-eight thousand, three hundred twenty-one".