6674405 has 4 divisors (see below), whose sum is σ = 8009292. Its totient is φ = 5339520.

The previous prime is 6674401. The next prime is 6674407. The reversal of 6674405 is 5044766.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4218916 + 2455489 = 2054^2 + 1567^2 .

It is not a de Polignac number, because 6674405 - 2² = 6674401 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 (6674401) 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, 667436 + ... + 667445.

It is an arithmetic number, because the mean of its divisors is an integer number (2002323).

Almost surely, 2^6674405 is an apocalyptic number.

It is an amenable number.

6674405 is a deficient number, since it is larger than the sum of its proper divisors (1334887).

6674405 is a wasteful number, since it uses less digits than its factorization.

6674405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334886.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 6674405 is about 2583.4869846779. The cubic root of 6674405 is about 188.2799981236.

The spelling of 6674405 in words is "six million, six hundred seventy-four thousand, four hundred five".