478902 has 8 divisors (see below), whose sum is σ = 957816. Its totient is φ = 159632.

The previous prime is 478901. The next prime is 478913. The reversal of 478902 is 209874.

It is a sphenic number, since it is the product of 3 distinct primes.

478902 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 478902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478901) 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, 39903 + ... + 39914.

It is an arithmetic number, because the mean of its divisors is an integer number (119727).

2⁴⁷⁸⁹⁰² is an apocalyptic number.

478902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478902 is a wasteful number, since it uses less digits than its factorization.

478902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79822.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 478902 is about 692.0274561027. The cubic root of 478902 is about 78.2376055113.

The spelling of 478902 in words is "four hundred seventy-eight thousand, nine hundred two".