2989709 has 4 divisors (see below), whose sum is σ = 2993760. Its totient is φ = 2985660.

The previous prime is 2989691. The next prime is 2989757. The reversal of 2989709 is 9079892.

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.

It is a cyclic number.

It is not a de Polignac number, because 2989709 - 2¹² = 2985613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2989709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989759) 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, 569 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

2^2989709 is an apocalyptic number.

It is an amenable number.

2989709 is a deficient number, since it is larger than the sum of its proper divisors (4051).

2989709 is an equidigital number, since it uses as much as digits as its factorization.

2989709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 2989709 is about 1729.0774997090. The cubic root of 2989709 is about 144.0598548756.

The spelling of 2989709 in words is "two million, nine hundred eighty-nine thousand, seven hundred nine".