9688590 has 48 divisors (see below), whose sum is σ = 25513488. Its totient is φ = 2550528.

The previous prime is 9688579. The next prime is 9688597. The reversal of 9688590 is 958869.

9688590 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9688597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6822 + ... + 8118.

It is an arithmetic number, because the mean of its divisors is an integer number (531531).

Almost surely, 2^9688590 is an apocalyptic number.

9688590 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9688590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12756744).

9688590 is an abundant number, since it is smaller than the sum of its proper divisors (15824898).

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

9688590 is a wasteful number, since it uses less digits than its factorization.

9688590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 9688590 is about 3112.6499963857. The cubic root of 9688590 is about 213.1834695086.

The spelling of 9688590 in words is "nine million, six hundred eighty-eight thousand, five hundred ninety".