6378890 has 16 divisors (see below), whose sum is σ = 13122432. Its totient is φ = 2187024.

The previous prime is 6378881. The next prime is 6378907. The reversal of 6378890 is 988736.

It is a Curzon number.

It is a congruent 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, 45494 + ... + 45633.

It is an arithmetic number, because the mean of its divisors is an integer number (820152).

Almost surely, 2^6378890 is an apocalyptic number.

6378890 is an abundant number, since it is smaller than the sum of its proper divisors (6743542).

6378890 is a wasteful number, since it uses less digits than its factorization.

6378890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91141.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 6378890 is about 2525.6464519010. The cubic root of 6378890 is about 185.4591952832.

The spelling of 6378890 in words is "six million, three hundred seventy-eight thousand, eight hundred ninety".