9720799 has 8 divisors (see below), whose sum is σ = 11162880. Its totient is φ = 8371800.

The previous prime is 9720797. The next prime is 9720803. The reversal of 9720799 is 9970279.

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 9720799 - 2¹ = 9720797 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720791) 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, 23047 + ... + 23464.

It is an arithmetic number, because the mean of its divisors is an integer number (1395360).

Almost surely, 2^9720799 is an apocalyptic number.

9720799 is a deficient number, since it is larger than the sum of its proper divisors (1442081).

9720799 is a wasteful number, since it uses less digits than its factorization.

9720799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46541.

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 9720799 is about 3117.8195906755. The cubic root of 9720799 is about 213.4194457589.

The spelling of 9720799 in words is "nine million, seven hundred twenty thousand, seven hundred ninety-nine".