4398146689 has 2 divisors, whose sum is σ = 4398146690. Its totient is φ = 4398146688.

The previous prime is 4398146671. The next prime is 4398146737. The reversal of 4398146689 is 9866418934.

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., 4274936689 + 123210000 = 65383^2 + 11100^2 .

It is a cyclic number.

It is not a de Polignac number, because 4398146689 - 2²⁷ = 4263928961 is a prime.

It is not a weakly prime, because it can be changed into another prime (4398146609) 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, 2199073344 + 2199073345.

It is an arithmetic number, because the mean of its divisors is an integer number (2199073345).

Almost surely, 2^4398146689 is an apocalyptic number.

It is an amenable number.

4398146689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4398146689 is an equidigital number, since it uses as much as digits as its factorization.

4398146689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8957952, while the sum is 58.

The square root of 4398146689 is about 66318.5244784593. The cubic root of 4398146689 is about 1638.4124396304.

The spelling of 4398146689 in words is "four billion, three hundred ninety-eight million, one hundred forty-six thousand, six hundred eighty-nine".