9721479541 has 8 divisors (see below), whose sum is σ = 9811066880. Its totient is φ = 9632096208.

The previous prime is 9721479533. The next prime is 9721479553. The reversal of 9721479541 is 1459741279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9721479541 - 2³ = 9721479533 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 (9721479571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45580 + ... + 146698.

It is an arithmetic number, because the mean of its divisors is an integer number (1226383360).

Almost surely, 2^9721479541 is an apocalyptic number.

It is an amenable number.

9721479541 is a deficient number, since it is larger than the sum of its proper divisors (89587339).

9721479541 is a wasteful number, since it uses less digits than its factorization.

9721479541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102003.

The product of its digits is 635040, while the sum is 49.

The square root of 9721479541 is about 98597.5635652322. The cubic root of 9721479541 is about 2134.2442605229.

The spelling of 9721479541 in words is "nine billion, seven hundred twenty-one million, four hundred seventy-nine thousand, five hundred forty-one".