2906243 has 4 divisors (see below), whose sum is σ = 2947248. Its totient is φ = 2865240.

The previous prime is 2906231. The next prime is 2906261. The reversal of 2906243 is 3426092.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2906243 - 2⁶ = 2906179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2906213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20396 + ... + 20537.

It is an arithmetic number, because the mean of its divisors is an integer number (736812).

2^2906243 is an apocalyptic number.

2906243 is a deficient number, since it is larger than the sum of its proper divisors (41005).

2906243 is an equidigital number, since it uses as much as digits as its factorization.

2906243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41004.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2906243 is about 1704.7706590624. The cubic root of 2906243 is about 142.7065722600.

The spelling of 2906243 in words is "two million, nine hundred six thousand, two hundred forty-three".