2906023 has 4 divisors (see below), whose sum is σ = 2936080. Its totient is φ = 2875968.

The previous prime is 2906011. The next prime is 2906053. The reversal of 2906023 is 3206092.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2906023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2905985 and 2906003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906053) 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 3 ways as a sum of consecutive naturals, for example, 14883 + ... + 15076.

It is an arithmetic number, because the mean of its divisors is an integer number (734020).

2^2906023 is an apocalyptic number.

2906023 is a deficient number, since it is larger than the sum of its proper divisors (30057).

2906023 is an equidigital number, since it uses as much as digits as its factorization.

2906023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30056.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2906023 is about 1704.7061330329. The cubic root of 2906023 is about 142.7029712491.

The spelling of 2906023 in words is "two million, nine hundred six thousand, twenty-three".