6348778 has 8 divisors (see below), whose sum is σ = 9744768. Its totient is φ = 3100524.

The previous prime is 6348773. The next prime is 6348781. The reversal of 6348778 is 8778436.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (6348773) 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, 36826 + ... + 36997.

It is an arithmetic number, because the mean of its divisors is an integer number (1218096).

Almost surely, 2^6348778 is an apocalyptic number.

6348778 is a deficient number, since it is larger than the sum of its proper divisors (3395990).

6348778 is a wasteful number, since it uses less digits than its factorization.

6348778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73868.

The product of its digits is 225792, while the sum is 43.

The square root of 6348778 is about 2519.6781540506. The cubic root of 6348778 is about 185.1669104801.

It can be divided in two parts, 63 and 48778, that added together give a square (48841 = 221²).

The spelling of 6348778 in words is "six million, three hundred forty-eight thousand, seven hundred seventy-eight".