9999007 has 4 divisors (see below), whose sum is σ = 10014840. Its totient is φ = 9983176.

The previous prime is 9998977. The next prime is 9999047. The reversal of 9999007 is 7009999.

9999007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7009999 = 31 ⋅226129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999007 is a prime.

It is an Ulam number.

It is a Duffinian number.

9999007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999047) 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, 6928 + ... + 8245.

It is an arithmetic number, because the mean of its divisors is an integer number (2503710).

Almost surely, 2^9999007 is an apocalyptic number.

9999007 is a deficient number, since it is larger than the sum of its proper divisors (15833).

9999007 is a wasteful number, since it uses less digits than its factorization.

9999007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15832.

The product of its (nonzero) digits is 45927, while the sum is 43.

The square root of 9999007 is about 3162.1206491847. The cubic root of 9999007 is about 215.4363375883.

The spelling of 9999007 in words is "nine million, nine hundred ninety-nine thousand, seven".