426655 has 4 divisors (see below), whose sum is σ = 511992. Its totient is φ = 341320.

The previous prime is 426641. The next prime is 426661. The reversal of 426655 is 556624.

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

It is not a de Polignac number, because 426655 - 2⁷ = 426527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42661 + ... + 42670.

It is an arithmetic number, because the mean of its divisors is an integer number (127998).

2⁴²⁶⁶⁵⁵ is an apocalyptic number.

426655 is a deficient number, since it is larger than the sum of its proper divisors (85337).

426655 is an equidigital number, since it uses as much as digits as its factorization.

426655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85336.

The product of its digits is 7200, while the sum is 28.

The square root of 426655 is about 653.1883342498. The cubic root of 426655 is about 75.2821961321.

It can be divided in two parts, 426 and 655, that added together give a triangular number (1081 = T₄₆).

The spelling of 426655 in words is "four hundred twenty-six thousand, six hundred fifty-five".