6669379 has 4 divisors (see below), whose sum is σ = 6959376. Its totient is φ = 6379384.

The previous prime is 6669367. The next prime is 6669401. The reversal of 6669379 is 9739666.

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 6669379 - 2⁷ = 6669251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6669349) 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, 144964 + ... + 145009.

It is an arithmetic number, because the mean of its divisors is an integer number (1739844).

Almost surely, 2^6669379 is an apocalyptic number.

6669379 is a deficient number, since it is larger than the sum of its proper divisors (289997).

6669379 is a wasteful number, since it uses less digits than its factorization.

6669379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289996.

The product of its digits is 367416, while the sum is 46.

The square root of 6669379 is about 2582.5140851504. The cubic root of 6669379 is about 188.2327263494.

The spelling of 6669379 in words is "six million, six hundred sixty-nine thousand, three hundred seventy-nine".