2906563 has 8 divisors (see below), whose sum is σ = 3337920. Its totient is φ = 2503080.

The previous prime is 2906549. The next prime is 2906567. The reversal of 2906563 is 3656092.

2906563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2906563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2906567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6745 + ... + 7162.

It is an arithmetic number, because the mean of its divisors is an integer number (417240).

2^2906563 is an apocalyptic number.

2906563 is a deficient number, since it is larger than the sum of its proper divisors (431357).

2906563 is a wasteful number, since it uses less digits than its factorization.

2906563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13937.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2906563 is about 1704.8645107456. The cubic root of 2906563 is about 142.7118097696.

The spelling of 2906563 in words is "two million, nine hundred six thousand, five hundred sixty-three".