2984309 has 4 divisors (see below), whose sum is σ = 3065004. Its totient is φ = 2903616.

The previous prime is 2984297. The next prime is 2984327. The reversal of 2984309 is 9034892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2900209 + 84100 = 1703^2 + 290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2984309 is a prime.

It is a super-2 number, since 2×2984309² = 17812200414962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2984389) 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, 40292 + ... + 40365.

It is an arithmetic number, because the mean of its divisors is an integer number (766251).

2^2984309 is an apocalyptic number.

It is an amenable number.

2984309 is a deficient number, since it is larger than the sum of its proper divisors (80695).

2984309 is an equidigital number, since it uses as much as digits as its factorization.

2984309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80694.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2984309 is about 1727.5152676605. The cubic root of 2984309 is about 143.9730691664.

The spelling of 2984309 in words is "two million, nine hundred eighty-four thousand, three hundred nine".