6782890 has 8 divisors (see below), whose sum is σ = 12209220. Its totient is φ = 2713152.

The previous prime is 6782869. The next prime is 6782903. The reversal of 6782890 is 982876.

It can be written as a sum of positive squares in 2 ways, for example, as 6765201 + 17689 = 2601^2 + 133^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339135 + ... + 339154.

Almost surely, 2^6782890 is an apocalyptic number.

6782890 is a deficient number, since it is larger than the sum of its proper divisors (5426330).

6782890 is a wasteful number, since it uses less digits than its factorization.

6782890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678296.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6782890 is about 2604.3982030404. The cubic root of 6782890 is about 189.2946143741.

The spelling of 6782890 in words is "six million, seven hundred eighty-two thousand, eight hundred ninety".