6473778 has 16 divisors (see below), whose sum is σ = 12972960. Its totient is φ = 2153696.

The previous prime is 6473749. The next prime is 6473801. The reversal of 6473778 is 8773746.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4513 + ... + 5771.

It is an arithmetic number, because the mean of its divisors is an integer number (810810).

Almost surely, 2^6473778 is an apocalyptic number.

6473778 is an abundant number, since it is smaller than the sum of its proper divisors (6499182).

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

6473778 is a wasteful number, since it uses less digits than its factorization.

6473778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121.

The product of its digits is 197568, while the sum is 42.

The square root of 6473778 is about 2544.3620025460. The cubic root of 6473778 is about 186.3742608765.

Subtracting 6473778 from its reverse (8773746), we obtain a cube (2299968 = 132³).

The spelling of 6473778 in words is "six million, four hundred seventy-three thousand, seven hundred seventy-eight".