10200621 has 4 divisors (see below), whose sum is σ = 13600832. Its totient is φ = 6800412.

The previous prime is 10200613. The next prime is 10200637. The reversal of 10200621 is 12600201.

10200621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10200621 - 2³ = 10200613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10200597 and 10200606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200601) 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 3 ways as a sum of consecutive naturals, for example, 1700101 + ... + 1700106.

It is an arithmetic number, because the mean of its divisors is an integer number (3400208).

Almost surely, 2^10200621 is an apocalyptic number.

It is an amenable number.

10200621 is a deficient number, since it is larger than the sum of its proper divisors (3400211).

10200621 is an equidigital number, since it uses as much as digits as its factorization.

10200621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400210.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10200621 is about 3193.8411043757. The cubic root of 10200621 is about 216.8746896269.

Adding to 10200621 its reverse (12600201), we get a palindrome (22800822).

The spelling of 10200621 in words is "ten million, two hundred thousand, six hundred twenty-one".