9669655 has 4 divisors (see below), whose sum is σ = 11603592. Its totient is φ = 7735720.

The previous prime is 9669631. The next prime is 9669661. The reversal of 9669655 is 5569669.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5569669 = 7 ⋅795667.

It is not a de Polignac number, because 9669655 - 2⁵ = 9669623 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 966961 + ... + 966970.

It is an arithmetic number, because the mean of its divisors is an integer number (2900898).

Almost surely, 2^9669655 is an apocalyptic number.

9669655 is a deficient number, since it is larger than the sum of its proper divisors (1933937).

9669655 is a wasteful number, since it uses less digits than its factorization.

9669655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933936.

The product of its digits is 437400, while the sum is 46.

The square root of 9669655 is about 3109.6068883381. The cubic root of 9669655 is about 213.0444998019.

It can be divided in two parts, 96 and 69655, that added together give a triangular number (69751 = T₃₇₃).

The spelling of 9669655 in words is "nine million, six hundred sixty-nine thousand, six hundred fifty-five".