426871633 has 2 divisors, whose sum is σ = 426871634. Its totient is φ = 426871632.

The previous prime is 426871631. The next prime is 426871639. The reversal of 426871633 is 336178624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407757249 + 19114384 = 20193^2 + 4372^2 .

It is a cyclic number.

It is not a de Polignac number, because 426871633 - 2¹ = 426871631 is a prime.

It is a super-3 number, since 3×426871633³ (a number of 27 digits) contains 333 as substring.

Together with 426871631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (426871631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213435816 + 213435817.

It is an arithmetic number, because the mean of its divisors is an integer number (213435817).

Almost surely, 2^426871633 is an apocalyptic number.

It is an amenable number.

426871633 is a deficient number, since it is larger than the sum of its proper divisors (1).

426871633 is an equidigital number, since it uses as much as digits as its factorization.

426871633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 426871633 is about 20660.8720290311. The cubic root of 426871633 is about 752.9493542465.

The spelling of 426871633 in words is "four hundred twenty-six million, eight hundred seventy-one thousand, six hundred thirty-three".