9721463 has 4 divisors (see below), whose sum is σ = 9748320. Its totient is φ = 9694608.

The previous prime is 9721451. The next prime is 9721477. The reversal of 9721463 is 3641279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3641279 = 977 ⋅3727.

It is a cyclic number.

It is not a de Polignac number, because 9721463 - 2¹⁰ = 9720439 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 (9721423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12878 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (2437080).

Almost surely, 2^9721463 is an apocalyptic number.

9721463 is a deficient number, since it is larger than the sum of its proper divisors (26857).

9721463 is a wasteful number, since it uses less digits than its factorization.

9721463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26856.

The product of its digits is 9072, while the sum is 32.

The square root of 9721463 is about 3117.9260735303. The cubic root of 9721463 is about 213.4243050057.

The spelling of 9721463 in words is "nine million, seven hundred twenty-one thousand, four hundred sixty-three".