6670969 has 4 divisors (see below), whose sum is σ = 6692596. Its totient is φ = 6649344.

The previous prime is 6670967. The next prime is 6670973. The reversal of 6670969 is 9690766.

It is a happy number.

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 619369 + 6051600 = 787^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 6670969 - 2¹ = 6670967 is a prime.

It is a super-2 number, since 2×6670969² = 89003654797922, which contains 22 as substring.

It is a Duffinian number.

6670969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6670967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10344 + ... + 10969.

It is an arithmetic number, because the mean of its divisors is an integer number (1673149).

Almost surely, 2^6670969 is an apocalyptic number.

It is an amenable number.

6670969 is a deficient number, since it is larger than the sum of its proper divisors (21627).

6670969 is a wasteful number, since it uses less digits than its factorization.

6670969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21626.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 6670969 is about 2582.8219063652. The cubic root of 6670969 is about 188.2476835768.

The spelling of 6670969 in words is "six million, six hundred seventy thousand, nine hundred sixty-nine".