9907399 has 4 divisors (see below), whose sum is σ = 9983160. Its totient is φ = 9831640.

The previous prime is 9907367. The next prime is 9907423. The reversal of 9907399 is 9937099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9937099 = 997 ⋅9967.

It is a cyclic number.

It is not a de Polignac number, because 9907399 - 2⁵ = 9907367 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 (9907309) 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 3 ways as a sum of consecutive naturals, for example, 37684 + ... + 37945.

It is an arithmetic number, because the mean of its divisors is an integer number (2495790).

Almost surely, 2^9907399 is an apocalyptic number.

9907399 is a deficient number, since it is larger than the sum of its proper divisors (75761).

9907399 is a wasteful number, since it uses less digits than its factorization.

9907399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75760.

The product of its (nonzero) digits is 137781, while the sum is 46.

The square root of 9907399 is about 3147.6021031890. The cubic root of 9907399 is about 214.7763963374.

The spelling of 9907399 in words is "nine million, nine hundred seven thousand, three hundred ninety-nine".