477889 has 4 divisors (see below), whose sum is σ = 480256. Its totient is φ = 475524.

The previous prime is 477881. The next prime is 477899. The reversal of 477889 is 988774.

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, and also an emirpimes, since its reverse is a distinct semiprime: 988774 = 2 ⋅494387.

It is a cyclic number.

It is not a de Polignac number, because 477889 - 2³ = 477881 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (477881) 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, 849 + ... + 1294.

It is an arithmetic number, because the mean of its divisors is an integer number (120064).

2⁴⁷⁷⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

477889 is a deficient number, since it is larger than the sum of its proper divisors (2367).

477889 is a wasteful number, since it uses less digits than its factorization.

477889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366.

The product of its digits is 112896, while the sum is 43.

The square root of 477889 is about 691.2951612734. The cubic root of 477889 is about 78.1824023999.

The spelling of 477889 in words is "four hundred seventy-seven thousand, eight hundred eighty-nine".