426577 has 4 divisors (see below), whose sum is σ = 431460. Its totient is φ = 421696.

The previous prime is 426563. The next prime is 426583. The reversal of 426577 is 775624.

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 229441 + 197136 = 479^2 + 444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2308 + ... + 2485.

It is an arithmetic number, because the mean of its divisors is an integer number (107865).

2⁴²⁶⁵⁷⁷ is an apocalyptic number.

It is an amenable number.

426577 is a deficient number, since it is larger than the sum of its proper divisors (4883).

426577 is an equidigital number, since it uses as much as digits as its factorization.

426577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4882.

The product of its digits is 11760, while the sum is 31.

The square root of 426577 is about 653.1286243919. The cubic root of 426577 is about 75.2776082183.

The spelling of 426577 in words is "four hundred twenty-six thousand, five hundred seventy-seven".