10641621 has 4 divisors (see below), whose sum is σ = 14188832. Its totient is φ = 7094412.

The previous prime is 10641619. The next prime is 10641623. The reversal of 10641621 is 12614601.

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 an interprime number because it is at equal distance from previous prime (10641619) and next prime (10641623).

It is not a de Polignac number, because 10641621 - 2¹ = 10641619 is a prime.

It is a super-2 number, since 2×10641621² = 226488195015282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10641623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773601 + ... + 1773606.

It is an arithmetic number, because the mean of its divisors is an integer number (3547208).

Almost surely, 2^10641621 is an apocalyptic number.

It is an amenable number.

10641621 is a deficient number, since it is larger than the sum of its proper divisors (3547211).

10641621 is an equidigital number, since it uses as much as digits as its factorization.

10641621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547210.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10641621 is about 3262.1497513143. The cubic root of 10641621 is about 219.9560587172.

The spelling of 10641621 in words is "ten million, six hundred forty-one thousand, six hundred twenty-one".