9721948 has 6 divisors (see below), whose sum is σ = 17013416. Its totient is φ = 4860972.

The previous prime is 9721937. The next prime is 9721951. The reversal of 9721948 is 8491279.

It is a self number, because there is not a number n which added to its sum of digits gives 9721948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215240 + ... + 1215247.

Almost surely, 2^9721948 is an apocalyptic number.

It is an amenable number.

9721948 is a deficient number, since it is larger than the sum of its proper divisors (7291468).

9721948 is a wasteful number, since it uses less digits than its factorization.

9721948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430491 (or 2430489 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 9721948 is about 3118.0038486185. The cubic root of 9721948 is about 213.4278541652.

The spelling of 9721948 in words is "nine million, seven hundred twenty-one thousand, nine hundred forty-eight".