2267729 has 2 divisors, whose sum is σ = 2267730. Its totient is φ = 2267728.

The previous prime is 2267723. The next prime is 2267737. The reversal of 2267729 is 9277622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 2704 = 1505^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 2267729 - 2¹² = 2263633 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁵ + 6⁴ + 7⁵ + 7⁶ + 2²¹ + 9 .

It is not a weakly prime, because it can be changed into another prime (2267723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1133864 + 1133865.

It is an arithmetic number, because the mean of its divisors is an integer number (1133865).

2^2267729 is an apocalyptic number.

It is an amenable number.

2267729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2267729 is an equidigital number, since it uses as much as digits as its factorization.

2267729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 2267729 is about 1505.8980709198. The cubic root of 2267729 is about 131.3803409649.

The spelling of 2267729 in words is "two million, two hundred sixty-seven thousand, seven hundred twenty-nine".