9947963 has 4 divisors (see below), whose sum is σ = 10471560. Its totient is φ = 9424368.

The previous prime is 9947947. The next prime is 9947969. The reversal of 9947963 is 3697499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3697499 = 13 ⋅284423.

It is a cyclic number.

It is not a de Polignac number, because 9947963 - 2⁴ = 9947947 is a prime.

It is a d-powerful number, because it can be written as 9 + 9⁷ + 4⁹ + 7⁶ + 9⁷ + 6² + 3⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9947969) 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, 261770 + ... + 261807.

It is an arithmetic number, because the mean of its divisors is an integer number (2617890).

Almost surely, 2^9947963 is an apocalyptic number.

9947963 is a deficient number, since it is larger than the sum of its proper divisors (523597).

9947963 is a wasteful number, since it uses less digits than its factorization.

9947963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523596.

The product of its digits is 367416, while the sum is 47.

The square root of 9947963 is about 3154.0391563834. The cubic root of 9947963 is about 215.0691178534.

The spelling of 9947963 in words is "nine million, nine hundred forty-seven thousand, nine hundred sixty-three".