413978489 has 2 divisors, whose sum is σ = 413978490. Its totient is φ = 413978488.

The previous prime is 413978431. The next prime is 413978507. The reversal of 413978489 is 984879314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413430889 + 547600 = 20333^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 413978489 - 2⁸ = 413978233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 413978489.

It is not a weakly prime, because it can be changed into another prime (413978989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206989244 + 206989245.

It is an arithmetic number, because the mean of its divisors is an integer number (206989245).

Almost surely, 2^413978489 is an apocalyptic number.

It is an amenable number.

413978489 is a deficient number, since it is larger than the sum of its proper divisors (1).

413978489 is an equidigital number, since it uses as much as digits as its factorization.

413978489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 413978489 is about 20346.4613385227. The cubic root of 413978489 is about 745.2910827474.

It can be divided in two parts, 4139 and 78489, that added together give a palindrome (82628).

The spelling of 413978489 in words is "four hundred thirteen million, nine hundred seventy-eight thousand, four hundred eighty-nine".