478172 has 12 divisors (see below), whose sum is σ = 842856. Its totient is φ = 237360.

The previous prime is 478171. The next prime is 478189. The reversal of 478172 is 271874.

It is a super-3 number, since 3×478172³ = 327999876517633344, which contains 333 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478171) 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, 347 + ... + 1037.

It is an arithmetic number, because the mean of its divisors is an integer number (70238).

2⁴⁷⁸¹⁷² is an apocalyptic number.

It is a pronic number, being equal to 691×692.

It is an amenable number.

478172 is a deficient number, since it is larger than the sum of its proper divisors (364684).

478172 is a wasteful number, since it uses less digits than its factorization.

478172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 866 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 478172 is about 691.4998192335. The cubic root of 478172 is about 78.1978322408.

The spelling of 478172 in words is "four hundred seventy-eight thousand, one hundred seventy-two".