70418489 has 2 divisors, whose sum is σ = 70418490. Its totient is φ = 70418488.

The previous prime is 70418483. The next prime is 70418521. The reversal of 70418489 is 98481407.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60715264 + 9703225 = 7792^2 + 3115^2 .

It is a cyclic number.

It is not a de Polignac number, because 70418489 - 2⁴ = 70418473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70418483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35209244 + 35209245.

It is an arithmetic number, because the mean of its divisors is an integer number (35209245).

Almost surely, 2^70418489 is an apocalyptic number.

It is an amenable number.

70418489 is a deficient number, since it is larger than the sum of its proper divisors (1).

70418489 is an equidigital number, since it uses as much as digits as its factorization.

70418489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 70418489 is about 8391.5724986441. The cubic root of 70418489 is about 412.9481904183.

It can be divided in two parts, 70418 and 489, that added together give a palindrome (70907).

The spelling of 70418489 in words is "seventy million, four hundred eighteen thousand, four hundred eighty-nine".