10440647 has 4 divisors (see below), whose sum is σ = 11932176. Its totient is φ = 8949120.

The previous prime is 10440641. The next prime is 10440743. The reversal of 10440647 is 74604401.

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 10440647 - 2⁴ = 10440631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440641) 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, 745754 + ... + 745767.

It is an arithmetic number, because the mean of its divisors is an integer number (2983044).

Almost surely, 2^10440647 is an apocalyptic number.

10440647 is a deficient number, since it is larger than the sum of its proper divisors (1491529).

10440647 is an equidigital number, since it uses as much as digits as its factorization.

10440647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491528.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 10440647 is about 3231.1990034661. The cubic root of 10440647 is about 218.5625777505.

The spelling of 10440647 in words is "ten million, four hundred forty thousand, six hundred forty-seven".