426485641 has 2 divisors, whose sum is σ = 426485642. Its totient is φ = 426485640.

The previous prime is 426485639. The next prime is 426485651. The reversal of 426485641 is 146584624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403407225 + 23078416 = 20085^2 + 4804^2 .

It is a cyclic number.

It is not a de Polignac number, because 426485641 - 2¹ = 426485639 is a prime.

Together with 426485639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 426485594 and 426485603.

It is not a weakly prime, because it can be changed into another prime (426485621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213242820 + 213242821.

It is an arithmetic number, because the mean of its divisors is an integer number (213242821).

Almost surely, 2^426485641 is an apocalyptic number.

It is an amenable number.

426485641 is a deficient number, since it is larger than the sum of its proper divisors (1).

426485641 is an equidigital number, since it uses as much as digits as its factorization.

426485641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 40.

The square root of 426485641 is about 20651.5287811823. The cubic root of 426485641 is about 752.7223382471.

The spelling of 426485641 in words is "four hundred twenty-six million, four hundred eighty-five thousand, six hundred forty-one".