6778453 has 4 divisors (see below), whose sum is σ = 7394688. Its totient is φ = 6162220.

The previous prime is 6778439. The next prime is 6778463. The reversal of 6778453 is 3548776.

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 not a de Polignac number, because 6778453 - 2²¹ = 4681301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778403) 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, 308101 + ... + 308122.

It is an arithmetic number, because the mean of its divisors is an integer number (1848672).

Almost surely, 2^6778453 is an apocalyptic number.

It is an amenable number.

6778453 is a deficient number, since it is larger than the sum of its proper divisors (616235).

6778453 is a wasteful number, since it uses less digits than its factorization.

6778453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616234.

The product of its digits is 141120, while the sum is 40.

The square root of 6778453 is about 2603.5462354258. The cubic root of 6778453 is about 189.2533299359.

The spelling of 6778453 in words is "six million, seven hundred seventy-eight thousand, four hundred fifty-three".