9981307 has 8 divisors (see below), whose sum is σ = 11800800. Its totient is φ = 8260224.

The previous prime is 9981271. The next prime is 9981317. The reversal of 9981307 is 7031899.

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

It is not a de Polignac number, because 9981307 - 2¹¹ = 9979259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9981317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24382 + ... + 24787.

It is an arithmetic number, because the mean of its divisors is an integer number (1475100).

Almost surely, 2^9981307 is an apocalyptic number.

9981307 is a deficient number, since it is larger than the sum of its proper divisors (1819493).

9981307 is a wasteful number, since it uses less digits than its factorization.

9981307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49205.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 9981307 is about 3159.3206548244. The cubic root of 9981307 is about 215.3091424440.

Subtracting from 9981307 its product of nonzero digits (13608), we obtain a palindrome (9967699).

It can be divided in two parts, 99 and 81307, that added together give a triangular number (81406 = T₄₀₃).

The spelling of 9981307 in words is "nine million, nine hundred eighty-one thousand, three hundred seven".