9739644 has 12 divisors (see below), whose sum is σ = 22725864. Its totient is φ = 3246544.

The previous prime is 9739643. The next prime is 9739699. The reversal of 9739644 is 4469379.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 9⁵ + 7⁴ + 3¹⁴ + 9⁷ + 6⁶ + 4³ + 4⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 9739596 and 9739605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9739643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405807 + ... + 405830.

It is an arithmetic number, because the mean of its divisors is an integer number (1893822).

Almost surely, 2^9739644 is an apocalyptic number.

It is an amenable number.

9739644 is an abundant number, since it is smaller than the sum of its proper divisors (12986220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9739644 is a wasteful number, since it uses less digits than its factorization.

9739644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811644 (or 811642 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 9739644 is about 3120.8402714654. The cubic root of 9739644 is about 213.5572702755.

The spelling of 9739644 in words is "nine million, seven hundred thirty-nine thousand, six hundred forty-four".