426735823 has 2 divisors, whose sum is σ = 426735824. Its totient is φ = 426735822.

The previous prime is 426735817. The next prime is 426735923. The reversal of 426735823 is 328537624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426735823 - 2⁵ = 426735791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426735223) 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, 213367911 + 213367912.

It is an arithmetic number, because the mean of its divisors is an integer number (213367912).

Almost surely, 2^426735823 is an apocalyptic number.

426735823 is a deficient number, since it is larger than the sum of its proper divisors (1).

426735823 is an equidigital number, since it uses as much as digits as its factorization.

426735823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 426735823 is about 20657.5851202409. The cubic root of 426735823 is about 752.8694950333.

The spelling of 426735823 in words is "four hundred twenty-six million, seven hundred thirty-five thousand, eight hundred twenty-three".