9661359 has 4 divisors (see below), whose sum is σ = 12881816. Its totient is φ = 6440904.

The previous prime is 9661349. The next prime is 9661361. The reversal of 9661359 is 9531669.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9661359 - 2⁷ = 9661231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661319) 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, 1610224 + ... + 1610229.

It is an arithmetic number, because the mean of its divisors is an integer number (3220454).

Almost surely, 2^9661359 is an apocalyptic number.

9661359 is a deficient number, since it is larger than the sum of its proper divisors (3220457).

9661359 is a wasteful number, since it uses less digits than its factorization.

9661359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220456.

The product of its digits is 43740, while the sum is 39.

The square root of 9661359 is about 3108.2726714367. The cubic root of 9661359 is about 212.9835557849.

The spelling of 9661359 in words is "nine million, six hundred sixty-one thousand, three hundred fifty-nine".