426803243 has 2 divisors, whose sum is σ = 426803244. Its totient is φ = 426803242.

The previous prime is 426803239. The next prime is 426803261. The reversal of 426803243 is 342308624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426803243 - 2² = 426803239 is a prime.

It is a super-2 number, since 2×426803243² = 364322016470634098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426803233) 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, 213401621 + 213401622.

It is an arithmetic number, because the mean of its divisors is an integer number (213401622).

Almost surely, 2^426803243 is an apocalyptic number.

426803243 is a deficient number, since it is larger than the sum of its proper divisors (1).

426803243 is an equidigital number, since it uses as much as digits as its factorization.

426803243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 426803243 is about 20659.2169019060. The cubic root of 426803243 is about 752.9091415669.

The spelling of 426803243 in words is "four hundred twenty-six million, eight hundred three thousand, two hundred forty-three".