9720093 has 4 divisors (see below), whose sum is σ = 12960128. Its totient is φ = 6480060.

The previous prime is 9720089. The next prime is 9720097. The reversal of 9720093 is 3900279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (9720089) and next prime (9720097).

It is not a de Polignac number, because 9720093 - 2² = 9720089 is a prime.

It is a Duffinian number.

9720093 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9720093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720097) 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, 1620013 + ... + 1620018.

It is an arithmetic number, because the mean of its divisors is an integer number (3240032).

Almost surely, 2^9720093 is an apocalyptic number.

It is an amenable number.

9720093 is a deficient number, since it is larger than the sum of its proper divisors (3240035).

9720093 is a wasteful number, since it uses less digits than its factorization.

9720093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240034.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 9720093 is about 3117.7063684703. The cubic root of 9720093 is about 213.4142789073.

The spelling of 9720093 in words is "nine million, seven hundred twenty thousand, ninety-three".