28614666 has 8 divisors (see below), whose sum is σ = 57229344. Its totient is φ = 9538220.

The previous prime is 28614631. The next prime is 28614667. The reversal of 28614666 is 66641682.

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

28614666 is an admirable number.

It is a super-2 number, since 2×28614666² = 1637598220583112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28614667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384550 + ... + 2384561.

It is an arithmetic number, because the mean of its divisors is an integer number (7153668).

Almost surely, 2^28614666 is an apocalyptic number.

28614666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28614666 is a wasteful number, since it uses less digits than its factorization.

28614666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769116.

The product of its digits is 82944, while the sum is 39.

The square root of 28614666 is about 5349.2678003630. The cubic root of 28614666 is about 305.8648426991.

The spelling of 28614666 in words is "twenty-eight million, six hundred fourteen thousand, six hundred sixty-six".