2398777 has 2 divisors, whose sum is σ = 2398778. Its totient is φ = 2398776.

The previous prime is 2398699. The next prime is 2398789. The reversal of 2398777 is 7778932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1498176 + 900601 = 1224^2 + 949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398777 is a prime.

It is not a weakly prime, because it can be changed into another prime (2398177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199388 + 1199389.

It is an arithmetic number, because the mean of its divisors is an integer number (1199389).

2^2398777 is an apocalyptic number.

It is an amenable number.

2398777 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398777 is an equidigital number, since it uses as much as digits as its factorization.

2398777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 43.

The square root of 2398777 is about 1548.7985666316. The cubic root of 2398777 is about 133.8638440274.

The spelling of 2398777 in words is "two million, three hundred ninety-eight thousand, seven hundred seventy-seven".