477998 has 8 divisors (see below), whose sum is σ = 721200. Its totient is φ = 237600.

The previous prime is 477991. The next prime is 478001. The reversal of 477998 is 899774.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477991) by changing a digit.

477998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 203 + ... + 998.

It is an arithmetic number, because the mean of its divisors is an integer number (90150).

2⁴⁷⁷⁹⁹⁸ is an apocalyptic number.

477998 is a deficient number, since it is larger than the sum of its proper divisors (243202).

477998 is a wasteful number, since it uses less digits than its factorization.

477998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its digits is 127008, while the sum is 44.

The square root of 477998 is about 691.3739943041. The cubic root of 477998 is about 78.1883460633.

The spelling of 477998 in words is "four hundred seventy-seven thousand, nine hundred ninety-eight".