2809734 has 8 divisors (see below), whose sum is σ = 5619480. Its totient is φ = 936576.

The previous prime is 2809727. The next prime is 2809759. The reversal of 2809734 is 4379082.

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

2809734 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2809695 and 2809704.

It is a congruent number.

It is an unprimeable number.

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, 234139 + ... + 234150.

It is an arithmetic number, because the mean of its divisors is an integer number (702435).

2^2809734 is an apocalyptic number.

2809734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2809734 is a wasteful number, since it uses less digits than its factorization.

2809734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468294.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2809734 is about 1676.2261183981. The cubic root of 2809734 is about 141.1091152759.

The spelling of 2809734 in words is "two million, eight hundred nine thousand, seven hundred thirty-four".