477838 has 4 divisors (see below), whose sum is σ = 716760. Its totient is φ = 238918.

The previous prime is 477823. The next prime is 477839. The reversal of 477838 is 838774.

477838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 477797 and 477806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119458 + ... + 119461.

It is an arithmetic number, because the mean of its divisors is an integer number (179190).

2⁴⁷⁷⁸³⁸ is an apocalyptic number.

477838 is a deficient number, since it is larger than the sum of its proper divisors (238922).

477838 is a wasteful number, since it uses less digits than its factorization.

477838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238921.

The product of its digits is 37632, while the sum is 37.

The square root of 477838 is about 691.2582730066. The cubic root of 477838 is about 78.1796211094.

The spelling of 477838 in words is "four hundred seventy-seven thousand, eight hundred thirty-eight".