9720067 has 8 divisors (see below), whose sum is σ = 11129600. Its totient is φ = 8315784.

The previous prime is 9720043. The next prime is 9720083. The reversal of 9720067 is 7600279.

It is a happy number.

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 9720067 - 2¹¹ = 9718019 is a prime.

It is a Duffinian number.

9720067 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9720037) 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, 4234 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (1391200).

Almost surely, 2^9720067 is an apocalyptic number.

9720067 is a deficient number, since it is larger than the sum of its proper divisors (1409533).

9720067 is a wasteful number, since it uses less digits than its factorization.

9720067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 9720067 is about 3117.7021987355. The cubic root of 9720067 is about 213.4140886219.

It can be divided in two parts, 97 and 20067, that added together give a square (20164 = 142²).

The spelling of 9720067 in words is "nine million, seven hundred twenty thousand, sixty-seven".