478477 has 4 divisors (see below), whose sum is σ = 503680. Its totient is φ = 453276.

The previous prime is 478459. The next prime is 478481. The reversal of 478477 is 774874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774874 = 2 ⋅387437.

It is a cyclic number.

It is not a de Polignac number, because 478477 - 2¹¹ = 476429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478417) 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, 12573 + ... + 12610.

It is an arithmetic number, because the mean of its divisors is an integer number (125920).

2⁴⁷⁸⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

478477 is a deficient number, since it is larger than the sum of its proper divisors (25203).

478477 is a wasteful number, since it uses less digits than its factorization.

478477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25202.

The product of its digits is 43904, while the sum is 37.

The square root of 478477 is about 691.7203192042. The cubic root of 478477 is about 78.2144547600.

The spelling of 478477 in words is "four hundred seventy-eight thousand, four hundred seventy-seven".