6669895 has 8 divisors (see below), whose sum is σ = 8024400. Its totient is φ = 5322240.

The previous prime is 6669889. The next prime is 6669907. The reversal of 6669895 is 5989666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6669895 - 2⁵ = 6669863 is a prime.

It is a super-2 number, since 2×6669895² = 88974998622050, which contains 22 as substring.

6669895 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760 + ... + 3730.

It is an arithmetic number, because the mean of its divisors is an integer number (1003050).

Almost surely, 2^6669895 is an apocalyptic number.

6669895 is a deficient number, since it is larger than the sum of its proper divisors (1354505).

6669895 is a wasteful number, since it uses less digits than its factorization.

6669895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425.

The product of its digits is 699840, while the sum is 49.

The square root of 6669895 is about 2582.6139858678. The cubic root of 6669895 is about 188.2375806535.

The spelling of 6669895 in words is "six million, six hundred sixty-nine thousand, eight hundred ninety-five".