6669696 has 64 divisors (see below), whose sum is σ = 19339200. Its totient is φ = 2019840.

The previous prime is 6669683. The next prime is 6669697. The reversal of 6669696 is 6969666.

6669696 = 16² + 17² + ... + 271².

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669697) 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, 3435 + ... + 5013.

It is an arithmetic number, because the mean of its divisors is an integer number (302175).

Almost surely, 2^6669696 is an apocalyptic number.

6669696 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6669696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9669600).

6669696 is an abundant number, since it is smaller than the sum of its proper divisors (12669504).

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

6669696 is a wasteful number, since it uses less digits than its factorization.

6669696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607 (or 1595 counting only the distinct ones).

The product of its digits is 629856, while the sum is 48.

The square root of 6669696 is about 2582.5754587233. The cubic root of 6669696 is about 188.2357085775.

The spelling of 6669696 in words is "six million, six hundred sixty-nine thousand, six hundred ninety-six".