2289929 has 2 divisors, whose sum is σ = 2289930. Its totient is φ = 2289928.

The previous prime is 2289923. The next prime is 2289943. The reversal of 2289929 is 9299822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 273529 = 1420^2 + 523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2289929 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2289923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1144964 + 1144965.

It is an arithmetic number, because the mean of its divisors is an integer number (1144965).

2^2289929 is an apocalyptic number.

It is an amenable number.

2289929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2289929 is an equidigital number, since it uses as much as digits as its factorization.

2289929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 2289929 is about 1513.2511358000. The cubic root of 2289929 is about 131.8076667864.

The spelling of 2289929 in words is "two million, two hundred eighty-nine thousand, nine hundred twenty-nine".