9640379 has 16 divisors (see below), whose sum is σ = 11356416. Its totient is φ = 8013600.

The previous prime is 9640373. The next prime is 9640417. The reversal of 9640379 is 9730469.

It is not a de Polignac number, because 9640379 - 2⁴ = 9640363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9640373) 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 15 ways as a sum of consecutive naturals, for example, 45584 + ... + 45794.

It is an arithmetic number, because the mean of its divisors is an integer number (709776).

Almost surely, 2^9640379 is an apocalyptic number.

9640379 is a deficient number, since it is larger than the sum of its proper divisors (1716037).

9640379 is a wasteful number, since it uses less digits than its factorization.

9640379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 9640379 is about 3104.8959724925. The cubic root of 9640379 is about 212.8292768221.

The spelling of 9640379 in words is "nine million, six hundred forty thousand, three hundred seventy-nine".