10641647 has 4 divisors (see below), whose sum is σ = 10684296. Its totient is φ = 10599000.

The previous prime is 10641629. The next prime is 10641661. The reversal of 10641647 is 74614601.

10641647 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 10641647 - 2⁶ = 10641583 is a prime.

It is a super-2 number, since 2×10641647² = 226489301745218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10641667) 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, 20948 + ... + 21449.

It is an arithmetic number, because the mean of its divisors is an integer number (2671074).

Almost surely, 2^10641647 is an apocalyptic number.

10641647 is a deficient number, since it is larger than the sum of its proper divisors (42649).

10641647 is an equidigital number, since it uses as much as digits as its factorization.

10641647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42648.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 10641647 is about 3262.1537364140. The cubic root of 10641647 is about 219.9562378519.

The spelling of 10641647 in words is "ten million, six hundred forty-one thousand, six hundred forty-seven".