477421 has 8 divisors (see below), whose sum is σ = 549824. Its totient is φ = 406080.

The previous prime is 477409. The next prime is 477439. The reversal of 477421 is 124774.

477421 is nontrivially palindromic in base 6.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 477421 - 2⁷ = 477293 is a prime.

It is a super-2 number, since 2×477421² = 455861622482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546 + ... + 1828.

It is an arithmetic number, because the mean of its divisors is an integer number (68728).

2⁴⁷⁷⁴²¹ is an apocalyptic number.

It is an amenable number.

477421 is a deficient number, since it is larger than the sum of its proper divisors (72403).

477421 is a wasteful number, since it uses less digits than its factorization.

477421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its digits is 1568, while the sum is 25.

The square root of 477421 is about 690.9565832959. The cubic root of 477421 is about 78.1568725419.

It can be divided in two parts, 477 and 421, that added together give a palindrome (898).

The spelling of 477421 in words is "four hundred seventy-seven thousand, four hundred twenty-one", and thus it is an iban number.