477842 has 4 divisors (see below), whose sum is σ = 716766. Its totient is φ = 238920.

The previous prime is 477839. The next prime is 477847. The reversal of 477842 is 248774.

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

It can be written as a sum of positive squares in only one way, i.e., 477481 + 361 = 691^2 + 19^2 .

It is a junction number, because it is equal to n+sod(n) for n = 477799 and 477808.

It is not an unprimeable number, because it can be changed into a prime (477847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119459 + ... + 119462.

2⁴⁷⁷⁸⁴² is an apocalyptic number.

477842 is a deficient number, since it is larger than the sum of its proper divisors (238924).

477842 is a wasteful number, since it uses less digits than its factorization.

477842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238923.

The product of its digits is 12544, while the sum is 32.

The square root of 477842 is about 691.2611662751. The cubic root of 477842 is about 78.1798392570.

The spelling of 477842 in words is "four hundred seventy-seven thousand, eight hundred forty-two".