477643 has 4 divisors (see below), whose sum is σ = 484840. Its totient is φ = 470448.

The previous prime is 477637. The next prime is 477671. The reversal of 477643 is 346774.

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

It is a 5-Lehmer number, since φ(477643) divides (477643-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 477643 - 2⁹ = 477131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477623) 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 3 ways as a sum of consecutive naturals, for example, 3498 + ... + 3631.

It is an arithmetic number, because the mean of its divisors is an integer number (121210).

2⁴⁷⁷⁶⁴³ is an apocalyptic number.

477643 is a deficient number, since it is larger than the sum of its proper divisors (7197).

477643 is an equidigital number, since it uses as much as digits as its factorization.

477643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196.

The product of its digits is 14112, while the sum is 31.

The square root of 477643 is about 691.1172114772. The cubic root of 477643 is about 78.1689849382.

The spelling of 477643 in words is "four hundred seventy-seven thousand, six hundred forty-three".