6669858 has 32 divisors (see below), whose sum is σ = 14466816. Its totient is φ = 2037888.

The previous prime is 6669857. The next prime is 6669863. The reversal of 6669858 is 8589666.

It is a super-3 number, since 3×6669858³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6669853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17991 + ... + 18357.

It is an arithmetic number, because the mean of its divisors is an integer number (452088).

Almost surely, 2^6669858 is an apocalyptic number.

6669858 is an abundant number, since it is smaller than the sum of its proper divisors (7796958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6669858 is a wasteful number, since it uses less digits than its factorization.

6669858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

The product of its digits is 622080, while the sum is 48.

The square root of 6669858 is about 2582.6068225729. The cubic root of 6669858 is about 188.2372325819.

The spelling of 6669858 in words is "six million, six hundred sixty-nine thousand, eight hundred fifty-eight".