2408689 has 2 divisors, whose sum is σ = 2408690. Its totient is φ = 2408688.

The previous prime is 2408683. The next prime is 2408723. The reversal of 2408689 is 9868042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 613089 = 1340^2 + 783^2 .

It is a cyclic number.

It is not a de Polignac number, because 2408689 - 2⁵ = 2408657 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁷ + 4⁸ + 0 + 8³ + 6⁸ + 8³ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (2408683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204344 + 1204345.

It is an arithmetic number, because the mean of its divisors is an integer number (1204345).

2^2408689 is an apocalyptic number.

It is an amenable number.

2408689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2408689 is an equidigital number, since it uses as much as digits as its factorization.

2408689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2408689 is about 1551.9951675182. The cubic root of 2408689 is about 134.0479704986.

The spelling of 2408689 in words is "two million, four hundred eight thousand, six hundred eighty-nine".