6478235 has 4 divisors (see below), whose sum is σ = 7773888. Its totient is φ = 5182584.

The previous prime is 6478229. The next prime is 6478267. The reversal of 6478235 is 5328746.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6478235 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 4⁴ + 7⁸ + 8² + 2¹⁸ + 3¹⁰ + 5⁸ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6478195 and 6478204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647819 + ... + 647828.

It is an arithmetic number, because the mean of its divisors is an integer number (1943472).

Almost surely, 2^6478235 is an apocalyptic number.

6478235 is a deficient number, since it is larger than the sum of its proper divisors (1295653).

6478235 is a wasteful number, since it uses less digits than its factorization.

6478235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295652.

The product of its digits is 40320, while the sum is 35.

The square root of 6478235 is about 2545.2377099202. The cubic root of 6478235 is about 186.4170220752.

Subtracting from 6478235 its sum of digits (35), we obtain a triangular number (6478200 = T₃₅₉₉).

The spelling of 6478235 in words is "six million, four hundred seventy-eight thousand, two hundred thirty-five".