426551803 has 2 divisors, whose sum is σ = 426551804. Its totient is φ = 426551802.

The previous prime is 426551779. The next prime is 426551819. The reversal of 426551803 is 308155624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426551803 - 2⁹ = 426551291 is a prime.

It is not a weakly prime, because it can be changed into another prime (426551303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213275901 + 213275902.

It is an arithmetic number, because the mean of its divisors is an integer number (213275902).

Almost surely, 2^426551803 is an apocalyptic number.

426551803 is a deficient number, since it is larger than the sum of its proper divisors (1).

426551803 is an equidigital number, since it uses as much as digits as its factorization.

426551803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 426551803 is about 20653.1305859427. The cubic root of 426551803 is about 752.7612602611.

The spelling of 426551803 in words is "four hundred twenty-six million, five hundred fifty-one thousand, eight hundred three".