426243089 has 2 divisors, whose sum is σ = 426243090. Its totient is φ = 426243088.

The previous prime is 426243067. The next prime is 426243113. The reversal of 426243089 is 980342624.

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., 346890625 + 79352464 = 18625^2 + 8908^2 .

It is a cyclic number.

It is not a de Polignac number, because 426243089 - 2⁸ = 426242833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426243019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213121544 + 213121545.

It is an arithmetic number, because the mean of its divisors is an integer number (213121545).

Almost surely, 2^426243089 is an apocalyptic number.

It is an amenable number.

426243089 is a deficient number, since it is larger than the sum of its proper divisors (1).

426243089 is an equidigital number, since it uses as much as digits as its factorization.

426243089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 426243089 is about 20645.6554509659. The cubic root of 426243089 is about 752.5796144651.

The spelling of 426243089 in words is "four hundred twenty-six million, two hundred forty-three thousand, eighty-nine".