478502 has 4 divisors (see below), whose sum is σ = 717756. Its totient is φ = 239250.

The previous prime is 478493. The next prime is 478523. The reversal of 478502 is 205874.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478502.

It is an unprimeable number.

478502 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, 119624 + ... + 119627.

It is an arithmetic number, because the mean of its divisors is an integer number (179439).

2⁴⁷⁸⁵⁰² is an apocalyptic number.

478502 is a deficient number, since it is larger than the sum of its proper divisors (239254).

478502 is a wasteful number, since it uses less digits than its factorization.

478502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239253.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 478502 is about 691.7383898556. The cubic root of 478502 is about 78.2158169483.

The spelling of 478502 in words is "four hundred seventy-eight thousand, five hundred two".