9640312 has 48 divisors (see below), whose sum is σ = 20779920. Its totient is φ = 4181760.

The previous prime is 9640303. The next prime is 9640321. The reversal of 9640312 is 2130469.

It is an interprime number because it is at equal distance from previous prime (9640303) and next prime (9640321).

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22048 + ... + 22480.

It is an arithmetic number, because the mean of its divisors is an integer number (432915).

Almost surely, 2^9640312 is an apocalyptic number.

9640312 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9640312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10389960).

9640312 is an abundant number, since it is smaller than the sum of its proper divisors (11139608).

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

9640312 is a wasteful number, since it uses less digits than its factorization.

9640312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 9640312 is about 3104.8851830623. The cubic root of 9640312 is about 212.8287837711.

The spelling of 9640312 in words is "nine million, six hundred forty thousand, three hundred twelve".