478516 has 24 divisors (see below), whose sum is σ = 919296. Its totient is φ = 216960.

The previous prime is 478493. The next prime is 478523. The reversal of 478516 is 615874.

478516 = T₈₃ + T₈₄ + ... + T₁₅₀.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995 + ... + 2221.

It is an arithmetic number, because the mean of its divisors is an integer number (38304).

2⁴⁷⁸⁵¹⁶ is an apocalyptic number.

478516 is the 438-th centered pentagonal number.

It is an amenable number.

478516 is a deficient number, since it is larger than the sum of its proper divisors (440780).

478516 is a wasteful number, since it uses less digits than its factorization.

478516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 277 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 478516 is about 691.7485092142. The cubic root of 478516 is about 78.2165797530.

The spelling of 478516 in words is "four hundred seventy-eight thousand, five hundred sixteen".