477879 has 4 divisors (see below), whose sum is σ = 637176. Its totient is φ = 318584.

The previous prime is 477863. The next prime is 477881. The reversal of 477879 is 978774.

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

It is a cyclic number.

It is not a de Polignac number, because 477879 - 2⁴ = 477863 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 477879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477809) 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, 79644 + ... + 79649.

It is an arithmetic number, because the mean of its divisors is an integer number (159294).

2⁴⁷⁷⁸⁷⁹ is an apocalyptic number.

477879 is a deficient number, since it is larger than the sum of its proper divisors (159297).

477879 is a wasteful number, since it uses less digits than its factorization.

477879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159296.

The product of its digits is 98784, while the sum is 42.

The square root of 477879 is about 691.2879284350. The cubic root of 477879 is about 78.1818570644.

The spelling of 477879 in words is "four hundred seventy-seven thousand, eight hundred seventy-nine".