9999499 has 4 divisors (see below), whose sum is σ = 10028664. Its totient is φ = 9970336.

The previous prime is 9999481. The next prime is 9999511. The reversal of 9999499 is 9949999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9949999 = 751 ⋅13249.

It is a cyclic number.

It is not a de Polignac number, because 9999499 - 2¹¹ = 9997451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9999419) 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, 14062 + ... + 14755.

It is an arithmetic number, because the mean of its divisors is an integer number (2507166).

Almost surely, 2^9999499 is an apocalyptic number.

9999499 is a deficient number, since it is larger than the sum of its proper divisors (29165).

9999499 is a wasteful number, since it uses less digits than its factorization.

9999499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29164.

The product of its digits is 2125764, while the sum is 58.

The square root of 9999499 is about 3162.1984441208. The cubic root of 9999499 is about 215.4398710372.

The spelling of 9999499 in words is "nine million, nine hundred ninety-nine thousand, four hundred ninety-nine".