9788669 has 4 divisors (see below), whose sum is σ = 10678560. Its totient is φ = 8898780.

The previous prime is 9788659. The next prime is 9788677. The reversal of 9788669 is 9668879.

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: 9668879 = 11 ⋅878989.

It is not a de Polignac number, because 9788669 - 2¹² = 9784573 is a prime.

It is a super-2 number, since 2×9788669² = 191636081583122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9788669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9788659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444929 + ... + 444950.

It is an arithmetic number, because the mean of its divisors is an integer number (2669640).

Almost surely, 2^9788669 is an apocalyptic number.

It is an amenable number.

9788669 is a deficient number, since it is larger than the sum of its proper divisors (889891).

9788669 is a wasteful number, since it uses less digits than its factorization.

9788669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889890.

The product of its digits is 1306368, while the sum is 53.

The square root of 9788669 is about 3128.6848674803. The cubic root of 9788669 is about 213.9149879236.

The spelling of 9788669 in words is "nine million, seven hundred eighty-eight thousand, six hundred sixty-nine".