6805451 has 4 divisors (see below), whose sum is σ = 6815400. Its totient is φ = 6795504.

The previous prime is 6805441. The next prime is 6805453. The reversal of 6805451 is 1545086.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6805451 - 2¹⁸ = 6543307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6805453) 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, 3866 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (1703850).

Almost surely, 2^6805451 is an apocalyptic number.

6805451 is a deficient number, since it is larger than the sum of its proper divisors (9949).

6805451 is an equidigital number, since it uses as much as digits as its factorization.

6805451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9948.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 6805451 is about 2608.7259342445. The cubic root of 6805451 is about 189.5042570454.

The spelling of 6805451 in words is "six million, eight hundred five thousand, four hundred fifty-one".