426409901 has 2 divisors, whose sum is σ = 426409902. Its totient is φ = 426409900.

The previous prime is 426409889. The next prime is 426409931. The reversal of 426409901 is 109904624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396049801 + 30360100 = 19901^2 + 5510^2 .

It is a cyclic number.

It is not a de Polignac number, because 426409901 - 2²⁶ = 359301037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426409931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213204950 + 213204951.

It is an arithmetic number, because the mean of its divisors is an integer number (213204951).

Almost surely, 2^426409901 is an apocalyptic number.

It is an amenable number.

426409901 is a deficient number, since it is larger than the sum of its proper divisors (1).

426409901 is an equidigital number, since it uses as much as digits as its factorization.

426409901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 426409901 is about 20649.6949372140. The cubic root of 426409901 is about 752.6777767116.

The spelling of 426409901 in words is "four hundred twenty-six million, four hundred nine thousand, nine hundred one".