477921 has 8 divisors (see below), whose sum is σ = 674784. Its totient is φ = 299840.

The previous prime is 477913. The next prime is 477941. The reversal of 477921 is 129774.

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 477921 - 2³ = 477913 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 477921.

It is not an unprimeable number, because it can be changed into a prime (477941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4635 + ... + 4736.

It is an arithmetic number, because the mean of its divisors is an integer number (84348).

2⁴⁷⁷⁹²¹ is an apocalyptic number.

It is an amenable number.

477921 is a deficient number, since it is larger than the sum of its proper divisors (196863).

477921 is a wasteful number, since it uses less digits than its factorization.

477921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9391.

The product of its digits is 3528, while the sum is 30.

The square root of 477921 is about 691.3183058476. The cubic root of 477921 is about 78.1841474223.

The spelling of 477921 in words is "four hundred seventy-seven thousand, nine hundred twenty-one".