9646939 has 4 divisors (see below), whose sum is σ = 10214424. Its totient is φ = 9079456.

The previous prime is 9646933. The next prime is 9646943. The reversal of 9646939 is 9396469.

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 9646939 - 2⁵ = 9646907 is a prime.

It is a super-3 number, since 3×9646939³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (9646933) 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, 283717 + ... + 283750.

It is an arithmetic number, because the mean of its divisors is an integer number (2553606).

Almost surely, 2^9646939 is an apocalyptic number.

9646939 is a deficient number, since it is larger than the sum of its proper divisors (567485).

9646939 is a wasteful number, since it uses less digits than its factorization.

9646939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567484.

The product of its digits is 314928, while the sum is 46.

The square root of 9646939 is about 3105.9521889430. The cubic root of 9646939 is about 212.8775406055.

It can be divided in two parts, 9646 and 939, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 9646939 in words is "nine million, six hundred forty-six thousand, nine hundred thirty-nine".