426534817 has 4 divisors (see below), whose sum is σ = 430758036. Its totient is φ = 422311600.

The previous prime is 426534791. The next prime is 426534833. The reversal of 426534817 is 718435624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 398561296 + 27973521 = 19964^2 + 5289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426534817 is a prime.

It is a super-2 number, since 2×426534817² = 363863900226446978, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426534817.

It is not an unprimeable number, because it can be changed into a prime (426537817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2111458 + ... + 2111659.

It is an arithmetic number, because the mean of its divisors is an integer number (107689509).

Almost surely, 2^426534817 is an apocalyptic number.

It is an amenable number.

426534817 is a deficient number, since it is larger than the sum of its proper divisors (4223219).

426534817 is a wasteful number, since it uses less digits than its factorization.

426534817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223218.

The product of its digits is 161280, while the sum is 40.

The square root of 426534817 is about 20652.7193608977. The cubic root of 426534817 is about 752.7512680613.

The spelling of 426534817 in words is "four hundred twenty-six million, five hundred thirty-four thousand, eight hundred seventeen".