478546 has 4 divisors (see below), whose sum is σ = 717822. Its totient is φ = 239272.

The previous prime is 478531. The next prime is 478571. The reversal of 478546 is 645874.

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., 408321 + 70225 = 639^2 + 265^2 .

It is an unprimeable number.

478546 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119635 + ... + 119638.

2⁴⁷⁸⁵⁴⁶ is an apocalyptic number.

478546 is a deficient number, since it is larger than the sum of its proper divisors (239276).

478546 is a wasteful number, since it uses less digits than its factorization.

478546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239275.

The product of its digits is 26880, while the sum is 34.

The square root of 478546 is about 691.7701930555. The cubic root of 478546 is about 78.2182142845.

It can be divided in two parts, 478 and 546, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 478546 in words is "four hundred seventy-eight thousand, five hundred forty-six".