2228971 has 2 divisors, whose sum is σ = 2228972. Its totient is φ = 2228970.

The previous prime is 2228959. The next prime is 2228981. The reversal of 2228971 is 1798222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2228971 - 2⁵ = 2228939 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 2²¹ + 8 + 9³ + 7 + 1 .

It is not a weakly prime, because it can be changed into another prime (2228981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114485 + 1114486.

It is an arithmetic number, because the mean of its divisors is an integer number (1114486).

2^2228971 is an apocalyptic number.

2228971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228971 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 11 representation: 2228971 = (1292728)₁₁.

2228971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 2228971 is about 1492.9738778693. The cubic root of 2228971 is about 130.6275573929.

The spelling of 2228971 in words is "two million, two hundred twenty-eight thousand, nine hundred seventy-one".