4990009 has 4 divisors (see below), whose sum is σ = 4994704. Its totient is φ = 4985316.

The previous prime is 4989997. The next prime is 4990019. The reversal of 4990009 is 9000994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4990009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4990019) 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, 94 + ... + 3160.

It is an arithmetic number, because the mean of its divisors is an integer number (1248676).

Almost surely, 2^4990009 is an apocalyptic number.

It is an amenable number.

4990009 is a deficient number, since it is larger than the sum of its proper divisors (4695).

4990009 is a wasteful number, since it uses less digits than its factorization.

4990009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 4990009 is about 2233.8328048446. The cubic root of 4990009 is about 170.8836229233.

The spelling of 4990009 in words is "four million, nine hundred ninety thousand, nine".