6478236 has 18 divisors (see below), whose sum is σ = 16375632. Its totient is φ = 2159400.

The previous prime is 6478229. The next prime is 6478267. The reversal of 6478236 is 6328746.

6478236 is a `hidden beast` number, since 647 + 8 + 2 + 3 + 6 = 666.

6478236 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 179951 = 6478236 / (6 + 4 + 7 + 8 + 2 + 3 + 6).

It is a d-powerful number, because it can be written as 6⁴ + 4¹¹ + 7² + 8³ + 2²¹ + 3¹¹ + 6⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 6478236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89940 + ... + 90011.

Almost surely, 2^6478236 is an apocalyptic number.

It is an amenable number.

6478236 is an abundant number, since it is smaller than the sum of its proper divisors (9897396).

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

6478236 is a wasteful number, since it uses less digits than its factorization.

6478236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179961 (or 179956 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 6478236 is about 2545.2379063655. The cubic root of 6478236 is about 186.4170316672.

Subtracting from 6478236 its sum of digits (36), we obtain a triangular number (6478200 = T₃₅₉₉).

The spelling of 6478236 in words is "six million, four hundred seventy-eight thousand, two hundred thirty-six".