2216903 has 8 divisors (see below), whose sum is σ = 2464896. Its totient is φ = 1980000.

The previous prime is 2216897. The next prime is 2216909. The reversal of 2216903 is 3096122.

Added to its reverse (3096122) it gives a square (5313025 = 2305²).

It is an interprime number because it is at equal distance from previous prime (2216897) and next prime (2216909).

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

It is a cyclic number.

It is not a de Polignac number, because 2216903 - 2⁴ = 2216887 is a prime.

It is a super-2 number, since 2×2216903² = 9829317822818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216909) 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, 2348 + ... + 3153.

It is an arithmetic number, because the mean of its divisors is an integer number (308112).

2^2216903 is an apocalyptic number.

2216903 is a deficient number, since it is larger than the sum of its proper divisors (247993).

2216903 is a wasteful number, since it uses less digits than its factorization.

2216903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2216903 is about 1488.9267947082. The cubic root of 2216903 is about 130.3913845977.

Adding to 2216903 its reverse (3096122), we get a square (5313025 = 2305²).

The spelling of 2216903 in words is "two million, two hundred sixteen thousand, nine hundred three".