10639705 has 32 divisors (see below), whose sum is σ = 14370048. Its totient is φ = 7526400.

The previous prime is 10639703. The next prime is 10639711. The reversal of 10639705 is 50793601.

10639705 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10639705 - 2¹ = 10639703 is a prime.

It is a super-2 number, since 2×10639705² = 226406644974050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10639703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149820 + ... + 149890.

It is an arithmetic number, because the mean of its divisors is an integer number (449064).

Almost surely, 2^10639705 is an apocalyptic number.

It is an amenable number.

10639705 is a deficient number, since it is larger than the sum of its proper divisors (3730343).

10639705 is a wasteful number, since it uses less digits than its factorization.

10639705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 10639705 is about 3261.8560667203. The cubic root of 10639705 is about 219.9428570598.

The spelling of 10639705 in words is "ten million, six hundred thirty-nine thousand, seven hundred five".