2438861 has 2 divisors, whose sum is σ = 2438862. Its totient is φ = 2438860.

The previous prime is 2438833. The next prime is 2438881. The reversal of 2438861 is 1688342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2157961 + 280900 = 1469^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2438861 - 2¹⁴ = 2422477 is a prime.

It is a Sophie Germain 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 (2438881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219430 + 1219431.

It is an arithmetic number, because the mean of its divisors is an integer number (1219431).

2^2438861 is an apocalyptic number.

It is an amenable number.

2438861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2438861 is an equidigital number, since it uses as much as digits as its factorization.

2438861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 32.

The square root of 2438861 is about 1561.6853076084. The cubic root of 2438861 is about 134.6053586840.

The spelling of 2438861 in words is "two million, four hundred thirty-eight thousand, eight hundred sixty-one".