426644147 has 2 divisors, whose sum is σ = 426644148. Its totient is φ = 426644146.

The previous prime is 426644131. The next prime is 426644171. The reversal of 426644147 is 741446624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426644147 - 2⁴ = 426644131 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426644147.

It is not a weakly prime, because it can be changed into another prime (426644177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213322073 + 213322074.

It is an arithmetic number, because the mean of its divisors is an integer number (213322074).

Almost surely, 2^426644147 is an apocalyptic number.

426644147 is a deficient number, since it is larger than the sum of its proper divisors (1).

426644147 is an equidigital number, since it uses as much as digits as its factorization.

426644147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 38.

The square root of 426644147 is about 20655.3660582426. The cubic root of 426644147 is about 752.8155779857.

The spelling of 426644147 in words is "four hundred twenty-six million, six hundred forty-four thousand, one hundred forty-seven".