9999715 has 8 divisors (see below), whose sum is σ = 13090608. Its totient is φ = 7272480.

The previous prime is 9999713. The next prime is 9999739. The reversal of 9999715 is 5179999.

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

It is not a de Polignac number, because 9999715 - 2¹ = 9999713 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 (9999713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90852 + ... + 90961.

It is an arithmetic number, because the mean of its divisors is an integer number (1636326).

Almost surely, 2^9999715 is an apocalyptic number.

9999715 is a deficient number, since it is larger than the sum of its proper divisors (3090893).

9999715 is a wasteful number, since it uses less digits than its factorization.

9999715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181829.

The product of its digits is 229635, while the sum is 49.

The square root of 9999715 is about 3162.2325973906. The cubic root of 9999715 is about 215.4414222708.

The spelling of 9999715 in words is "nine million, nine hundred ninety-nine thousand, seven hundred fifteen".