9640437 has 4 divisors (see below), whose sum is σ = 12853920. Its totient is φ = 6426956.

The previous prime is 9640417. The next prime is 9640447. The reversal of 9640437 is 7340469.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7340469 = 3 ⋅2446823.

It is a cyclic number.

It is not a de Polignac number, because 9640437 - 2⁶ = 9640373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9640398 and 9640407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640417) 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, 1606737 + ... + 1606742.

It is an arithmetic number, because the mean of its divisors is an integer number (3213480).

Almost surely, 2^9640437 is an apocalyptic number.

It is an amenable number.

9640437 is a deficient number, since it is larger than the sum of its proper divisors (3213483).

9640437 is a wasteful number, since it uses less digits than its factorization.

9640437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213482.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 9640437 is about 3104.9053125659. The cubic root of 9640437 is about 212.8297036405.

Subtracting from 9640437 its reverse (7340469), we obtain a cube (2299968 = 132³).

The spelling of 9640437 in words is "nine million, six hundred forty thousand, four hundred thirty-seven".