2239898777 has 2 divisors, whose sum is σ = 2239898778. Its totient is φ = 2239898776.

The previous prime is 2239898761. The next prime is 2239898797. The reversal of 2239898777 is 7778989322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1522248256 + 717650521 = 39016^2 + 26789^2 .

It is a cyclic number.

It is not a de Polignac number, because 2239898777 - 2⁴ = 2239898761 is a prime.

It is not a weakly prime, because it can be changed into another prime (2239898797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119949388 + 1119949389.

It is an arithmetic number, because the mean of its divisors is an integer number (1119949389).

Almost surely, 2^2239898777 is an apocalyptic number.

It is an amenable number.

2239898777 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239898777 is an equidigital number, since it uses as much as digits as its factorization.

2239898777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21337344, while the sum is 62.

The square root of 2239898777 is about 47327.5688896018. The cubic root of 2239898777 is about 1308.4068150199.

The spelling of 2239898777 in words is "two billion, two hundred thirty-nine million, eight hundred ninety-eight thousand, seven hundred seventy-seven".