2906239 has 16 divisors (see below), whose sum is σ = 3496000. Its totient is φ = 2413152.

The previous prime is 2906231. The next prime is 2906261. The reversal of 2906239 is 9326092.

It is not a de Polignac number, because 2906239 - 2³ = 2906231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2906239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906231) 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, 12577 + ... + 12805.

It is an arithmetic number, because the mean of its divisors is an integer number (218500).

2^2906239 is an apocalyptic number.

2906239 is a deficient number, since it is larger than the sum of its proper divisors (589761).

2906239 is an equidigital number, since it uses as much as digits as its factorization.

2906239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 2906239 is about 1704.7694858836. The cubic root of 2906239 is about 142.7065067887.

The spelling of 2906239 in words is "two million, nine hundred six thousand, two hundred thirty-nine".