2830905 has 96 divisors (see below), whose sum is σ = 6589440. Its totient is φ = 1088640.

The previous prime is 2830897. The next prime is 2830913. The reversal of 2830905 is 5090382.

2830905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2830897) and next prime (2830913).

It is not a de Polignac number, because 2830905 - 2³ = 2830897 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65814 + ... + 65856.

It is an arithmetic number, because the mean of its divisors is an integer number (68640).

2^2830905 is an apocalyptic number.

It is an amenable number.

2830905 is an abundant number, since it is smaller than the sum of its proper divisors (3758535).

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

2830905 is a wasteful number, since it uses less digits than its factorization.

2830905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2830905 is about 1682.5293459551. The cubic root of 2830905 is about 141.4626421042.

The spelling of 2830905 in words is "two million, eight hundred thirty thousand, nine hundred five".