2293339721 has 2 divisors, whose sum is σ = 2293339722. Its totient is φ = 2293339720.

The previous prime is 2293339709. The next prime is 2293339739. The reversal of 2293339721 is 1279333922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1755610000 + 537729721 = 41900^2 + 23189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2293339721 is a prime.

It is not a weakly prime, because it can be changed into another prime (2293339751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1146669860 + 1146669861.

It is an arithmetic number, because the mean of its divisors is an integer number (1146669861).

Almost surely, 2^2293339721 is an apocalyptic number.

It is an amenable number.

2293339721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2293339721 is an equidigital number, since it uses as much as digits as its factorization.

2293339721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 41.

The square root of 2293339721 is about 47888.8266822231. The cubic root of 2293339721 is about 1318.7307436943.

The spelling of 2293339721 in words is "two billion, two hundred ninety-three million, three hundred thirty-nine thousand, seven hundred twenty-one".