2906223 has 8 divisors (see below), whose sum is σ = 3938736. Its totient is φ = 1905600.

The previous prime is 2906213. The next prime is 2906231. The reversal of 2906223 is 3226092.

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

It is not a de Polignac number, because 2906223 - 2⁴ = 2906207 is a prime.

It is a super-2 number, since 2×2906223² = 16892264251458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2906193 and 2906202.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 7758 + ... + 8123.

It is an arithmetic number, because the mean of its divisors is an integer number (492342).

2^2906223 is an apocalyptic number.

2906223 is a deficient number, since it is larger than the sum of its proper divisors (1032513).

2906223 is a wasteful number, since it uses less digits than its factorization.

2906223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15945.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2906223 is about 1704.7647931606. The cubic root of 2906223 is about 142.7062449029.

The spelling of 2906223 in words is "two million, nine hundred six thousand, two hundred twenty-three".