426477 has 4 divisors (see below), whose sum is σ = 568640. Its totient is φ = 284316.

The previous prime is 426469. The next prime is 426487. The reversal of 426477 is 774624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 426477 - 2³ = 426469 is a prime.

It is a D-number.

It is a Duffinian number.

426477 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 426477.

It is not an unprimeable number, because it can be changed into a prime (426407) 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, 71077 + ... + 71082.

It is an arithmetic number, because the mean of its divisors is an integer number (142160).

2⁴²⁶⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

426477 is a deficient number, since it is larger than the sum of its proper divisors (142163).

426477 is a wasteful number, since it uses less digits than its factorization.

426477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142162.

The product of its digits is 9408, while the sum is 30.

The square root of 426477 is about 653.0520653057. The cubic root of 426477 is about 75.2717254592.

It can be divided in two parts, 426 and 477, that added together give a triangular number (903 = T₄₂).

The spelling of 426477 in words is "four hundred twenty-six thousand, four hundred seventy-seven".