426398873 has 4 divisors (see below), whose sum is σ = 426545460. Its totient is φ = 426252288.

The previous prime is 426398867. The next prime is 426398891. The reversal of 426398873 is 378893624.

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 62047129 + 364351744 = 7877^2 + 19088^2 .

It is a cyclic number.

It is not a de Polignac number, because 426398873 - 2⁴ = 426398857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426398773) 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, 68840 + ... + 74777.

It is an arithmetic number, because the mean of its divisors is an integer number (106636365).

Almost surely, 2^426398873 is an apocalyptic number.

It is an amenable number.

426398873 is a deficient number, since it is larger than the sum of its proper divisors (146587).

426398873 is a wasteful number, since it uses less digits than its factorization.

426398873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146586.

The product of its digits is 1741824, while the sum is 50.

The square root of 426398873 is about 20649.4279097509. The cubic root of 426398873 is about 752.6712879613.

The spelling of 426398873 in words is "four hundred twenty-six million, three hundred ninety-eight thousand, eight hundred seventy-three".