6466669 has 8 divisors (see below), whose sum is σ = 7426080. Its totient is φ = 5569200.

The previous prime is 6466661. The next prime is 6466679. The reversal of 6466669 is 9666646.

6466669 is nontrivially palindromic in base 13.

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

It is a cyclic number.

It is not a de Polignac number, because 6466669 - 2³ = 6466661 is a prime.

It is a super-2 number, since 2×6466669² = 83635615911122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15262 + ... + 15679.

It is an arithmetic number, because the mean of its divisors is an integer number (928260).

Almost surely, 2^6466669 is an apocalyptic number.

It is an amenable number.

6466669 is a deficient number, since it is larger than the sum of its proper divisors (959411).

6466669 is a wasteful number, since it uses less digits than its factorization.

6466669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30971.

The product of its digits is 279936, while the sum is 43.

The square root of 6466669 is about 2542.9646084836. The cubic root of 6466669 is about 186.3060153122.

The spelling of 6466669 in words is "six million, four hundred sixty-six thousand, six hundred sixty-nine".