10415621 has 4 divisors (see below), whose sum is σ = 10436832. Its totient is φ = 10394412.

The previous prime is 10415617. The next prime is 10415633. The reversal of 10415621 is 12651401.

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 a cyclic number.

It is not a de Polignac number, because 10415621 - 2² = 10415617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10415593 and 10415602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10415641) 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, 9851 + ... + 10856.

It is an arithmetic number, because the mean of its divisors is an integer number (2609208).

Almost surely, 2^10415621 is an apocalyptic number.

It is an amenable number.

10415621 is a deficient number, since it is larger than the sum of its proper divisors (21211).

10415621 is an equidigital number, since it uses as much as digits as its factorization.

10415621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21210.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 10415621 is about 3227.3241237905. The cubic root of 10415621 is about 218.3878081478.

The spelling of 10415621 in words is "ten million, four hundred fifteen thousand, six hundred twenty-one".