10213621 has 8 divisors (see below), whose sum is σ = 11728800. Its totient is φ = 8796240.

The previous prime is 10213603. The next prime is 10213631. The reversal of 10213621 is 12631201.

10213621 is digitally balanced in base 3, 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 not a de Polignac number, because 10213621 - 2⁹ = 10213109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10213595 and 10213604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213631) 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, 24226 + ... + 24643.

It is an arithmetic number, because the mean of its divisors is an integer number (1466100).

Almost surely, 2^10213621 is an apocalyptic number.

10213621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10213621 is a deficient number, since it is larger than the sum of its proper divisors (1515179).

10213621 is a wasteful number, since it uses less digits than its factorization.

10213621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48899.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 10213621 is about 3195.8756233621. The cubic root of 10213621 is about 216.9667812133.

Adding to 10213621 its reverse (12631201), we get a palindrome (22844822).

The spelling of 10213621 in words is "ten million, two hundred thirteen thousand, six hundred twenty-one".