10620321 has 8 divisors (see below), whose sum is σ = 14617344. Its totient is φ = 6851760.

The previous prime is 10620317. The next prime is 10620329. The reversal of 10620321 is 12302601.

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

It is not a de Polignac number, because 10620321 - 2² = 10620317 is a prime.

It is a super-2 number, since 2×10620321² = 225582436286082, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10620321.

It is not an unprimeable number, because it can be changed into a prime (10620329) 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, 57006 + ... + 57191.

It is an arithmetic number, because the mean of its divisors is an integer number (1827168).

Almost surely, 2^10620321 is an apocalyptic number.

It is an amenable number.

10620321 is a deficient number, since it is larger than the sum of its proper divisors (3997023).

10620321 is a wasteful number, since it uses less digits than its factorization.

10620321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114231.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10620321 is about 3258.8833977300. The cubic root of 10620321 is about 219.8092078641.

Adding to 10620321 its reverse (12302601), we get a palindrome (22922922).

The spelling of 10620321 in words is "ten million, six hundred twenty thousand, three hundred twenty-one".