9961366 has 4 divisors (see below), whose sum is σ = 14942052. Its totient is φ = 4980682.

The previous prime is 9961351. The next prime is 9961381. The reversal of 9961366 is 6631699.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (9961351) and next prime (9961381).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2490340 + ... + 2490343.

It is an arithmetic number, because the mean of its divisors is an integer number (3735513).

Almost surely, 2^9961366 is an apocalyptic number.

9961366 is a deficient number, since it is larger than the sum of its proper divisors (4980686).

9961366 is a wasteful number, since it uses less digits than its factorization.

9961366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980685.

The product of its digits is 52488, while the sum is 40.

The square root of 9961366 is about 3156.1631770236. The cubic root of 9961366 is about 215.1656628373.

The spelling of 9961366 in words is "nine million, nine hundred sixty-one thousand, three hundred sixty-six".