477491 has 4 divisors (see below), whose sum is σ = 545712. Its totient is φ = 409272.

The previous prime is 477469. The next prime is 477497. The reversal of 477491 is 194774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194774 = 2 ⋅97387.

It is a cyclic number.

It is not a de Polignac number, because 477491 - 2¹⁰ = 476467 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 477491.

It is not an unprimeable number, because it can be changed into a prime (477497) 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, 34100 + ... + 34113.

It is an arithmetic number, because the mean of its divisors is an integer number (136428).

2⁴⁷⁷⁴⁹¹ is an apocalyptic number.

477491 is a deficient number, since it is larger than the sum of its proper divisors (68221).

477491 is an equidigital number, since it uses as much as digits as its factorization.

477491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68220.

The product of its digits is 7056, while the sum is 32.

The square root of 477491 is about 691.0072358521. The cubic root of 477491 is about 78.1606921712.

It can be divided in two parts, 4774 and 91, that multiplied together give a palindrome (434434).

The spelling of 477491 in words is "four hundred seventy-seven thousand, four hundred ninety-one".