6782401 has 4 divisors (see below), whose sum is σ = 7077312. Its totient is φ = 6487492.

The previous prime is 6782381. The next prime is 6782431. The reversal of 6782401 is 1042876.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6782401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6782401.

It is not an unprimeable number, because it can be changed into a prime (6782431) 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, 147421 + ... + 147466.

It is an arithmetic number, because the mean of its divisors is an integer number (1769328).

Almost surely, 2^6782401 is an apocalyptic number.

It is an amenable number.

6782401 is a deficient number, since it is larger than the sum of its proper divisors (294911).

6782401 is a wasteful number, since it uses less digits than its factorization.

6782401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294910.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 6782401 is about 2604.3043216951. The cubic root of 6782401 is about 189.2900653156.

The spelling of 6782401 in words is "six million, seven hundred eighty-two thousand, four hundred one".