10439661 has 16 divisors (see below), whose sum is σ = 14408384. Its totient is φ = 6718464.

The previous prime is 10439659. The next prime is 10439701. The reversal of 10439661 is 16693401.

It is not a de Polignac number, because 10439661 - 2¹ = 10439659 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 (10439641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17805 + ... + 18381.

It is an arithmetic number, because the mean of its divisors is an integer number (900524).

Almost surely, 2^10439661 is an apocalyptic number.

It is an amenable number.

10439661 is a deficient number, since it is larger than the sum of its proper divisors (3968723).

10439661 is a wasteful number, since it uses less digits than its factorization.

10439661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 10439661 is about 3231.0464249218. The cubic root of 10439661 is about 218.5556972866. Note that the first 3 decimals are identical.

The spelling of 10439661 in words is "ten million, four hundred thirty-nine thousand, six hundred sixty-one".