2398961 has 2 divisors, whose sum is σ = 2398962. Its totient is φ = 2398960.

The previous prime is 2398931. The next prime is 2398987. The reversal of 2398961 is 1698932.

2398961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1515361 + 883600 = 1231^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2398961 - 2¹⁸ = 2136817 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2398901) 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, 1199480 + 1199481.

It is an arithmetic number, because the mean of its divisors is an integer number (1199481).

2^2398961 is an apocalyptic number.

It is an amenable number.

2398961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398961 is an equidigital number, since it uses as much as digits as its factorization.

2398961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 2398961 is about 1548.8579663739. The cubic root of 2398961 is about 133.8672666489.

The spelling of 2398961 in words is "two million, three hundred ninety-eight thousand, nine hundred sixty-one".