9660690 has 96 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 2268288.

The previous prime is 9660689. The next prime is 9660691. The reversal of 9660690 is 960669.

It is an interprime number because it is at equal distance from previous prime (9660689) and next prime (9660691).

It is a super-2 number, since 2×9660690² = 186657862552200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9660691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26731 + ... + 27089.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^9660690 is an apocalyptic number.

9660690 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 9660690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152320).

9660690 is an abundant number, since it is smaller than the sum of its proper divisors (18643950).

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

9660690 is a wasteful number, since it uses less digits than its factorization.

9660690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 9660690 is about 3108.1650535324. The cubic root of 9660690 is about 212.9786396619.

The spelling of 9660690 in words is "nine million, six hundred sixty thousand, six hundred ninety".