2928609 has 16 divisors (see below), whose sum is σ = 4396800. Its totient is φ = 1926288.

The previous prime is 2928581. The next prime is 2928647. The reversal of 2928609 is 9068292.

2928609 is a `hidden beast` number, since 29 + 28 + 609 = 666.

It is not a de Polignac number, because 2928609 - 2⁷ = 2928481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2928209) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1447 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (274800).

2^2928609 is an apocalyptic number.

It is an amenable number.

2928609 is a deficient number, since it is larger than the sum of its proper divisors (1468191).

2928609 is a wasteful number, since it uses less digits than its factorization.

2928609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2928609 is about 1711.3179131885. The cubic root of 2928609 is about 143.0717197740.

The spelling of 2928609 in words is "two million, nine hundred twenty-eight thousand, six hundred nine".