2684905 has 16 divisors (see below), whose sum is σ = 3458304. Its totient is φ = 1995840.

The previous prime is 2684897. The next prime is 2684917. The reversal of 2684905 is 5094862.

It is a happy number.

It is not a de Polignac number, because 2684905 - 2³ = 2684897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3940 + ... + 4570.

It is an arithmetic number, because the mean of its divisors is an integer number (216144).

2^2684905 is an apocalyptic number.

It is an amenable number.

2684905 is a deficient number, since it is larger than the sum of its proper divisors (773399).

2684905 is a wasteful number, since it uses less digits than its factorization.

2684905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2684905 is about 1638.5679723466. The cubic root of 2684905 is about 138.9876807052.

The spelling of 2684905 in words is "two million, six hundred eighty-four thousand, nine hundred five".