2229769 has 2 divisors, whose sum is σ = 2229770. Its totient is φ = 2229768.

The previous prime is 2229767. The next prime is 2229779. The reversal of 2229769 is 9679222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2214144 + 15625 = 1488^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2229769 - 2¹ = 2229767 is a prime.

It is a super-2 number, since 2×2229769² = 9943739586722, which contains 22 as substring.

Together with 2229767, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2⁷ + 2¹³ + 2¹⁹ + 9 + 7⁵ + 6⁸ + 9³ .

2229769 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2229767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114884 + 1114885.

It is an arithmetic number, because the mean of its divisors is an integer number (1114885).

2^2229769 is an apocalyptic number.

It is an amenable number.

2229769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2229769 is an equidigital number, since it uses as much as digits as its factorization.

2229769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 2229769 is about 1493.2411057830. The cubic root of 2229769 is about 130.6431443092.

It can be divided in two parts, 22297 and 69, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 2229769 in words is "two million, two hundred twenty-nine thousand, seven hundred sixty-nine".