2930809 has 8 divisors (see below), whose sum is σ = 3397248. Its totient is φ = 2476320.

The previous prime is 2930791. The next prime is 2930819. The reversal of 2930809 is 9080392.

It is a happy number.

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

It is not a de Polignac number, because 2930809 - 2⁵ = 2930777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2930819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2452 + ... + 3445.

It is an arithmetic number, because the mean of its divisors is an integer number (424656).

2^2930809 is an apocalyptic number.

It is an amenable number.

2930809 is a deficient number, since it is larger than the sum of its proper divisors (466439).

2930809 is an equidigital number, since it uses as much as digits as its factorization.

2930809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5975.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2930809 is about 1711.9605719759. The cubic root of 2930809 is about 143.1075364364.

The spelling of 2930809 in words is "two million, nine hundred thirty thousand, eight hundred nine".