6782455 has 4 divisors (see below), whose sum is σ = 8138952. Its totient is φ = 5425960.

The previous prime is 6782443. The next prime is 6782509. The reversal of 6782455 is 5542876.

It is a happy number.

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

It is not a de Polignac number, because 6782455 - 2¹¹ = 6780407 is a prime.

It is a Duffinian number.

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, 678241 + ... + 678250.

It is an arithmetic number, because the mean of its divisors is an integer number (2034738).

Almost surely, 2^6782455 is an apocalyptic number.

6782455 is a deficient number, since it is larger than the sum of its proper divisors (1356497).

6782455 is a wasteful number, since it uses less digits than its factorization.

6782455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356496.

The product of its digits is 67200, while the sum is 37.

The square root of 6782455 is about 2604.3146891265. The cubic root of 6782455 is about 189.2905676763.

The spelling of 6782455 in words is "six million, seven hundred eighty-two thousand, four hundred fifty-five".