9665436 has 48 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 2848320.

The previous prime is 9665431. The next prime is 9665437. The reversal of 9665436 is 6345669.

9665436 = T₄₂₄ + T₄₂₅ + ... + T₅₁₁.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9665394 and 9665403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9665431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3895 + ... + 5873.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^9665436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9665436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12640320).

9665436 is an abundant number, since it is smaller than the sum of its proper divisors (15615204).

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

9665436 is a wasteful number, since it uses less digits than its factorization.

9665436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034 (or 2032 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 9665436 is about 3108.9284327562. The cubic root of 9665436 is about 213.0135105715.

It can be divided in two parts, 9665 and 436, that added together give a palindrome (10101).

The spelling of 9665436 in words is "nine million, six hundred sixty-five thousand, four hundred thirty-six".