28788466 has 8 divisors (see below), whose sum is σ = 49351680. Its totient is φ = 12337908.

The previous prime is 28788451. The next prime is 28788481. The reversal of 28788466 is 66488782.

28788466 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (28788451) and next prime (28788481).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028146 + ... + 1028173.

It is an arithmetic number, because the mean of its divisors is an integer number (6168960).

Almost surely, 2^28788466 is an apocalyptic number.

28788466 is a deficient number, since it is larger than the sum of its proper divisors (20563214).

28788466 is a wasteful number, since it uses less digits than its factorization.

28788466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056328.

The product of its digits is 1032192, while the sum is 49.

The square root of 28788466 is about 5365.4884213835. The cubic root of 28788466 is about 306.4828479890.

The spelling of 28788466 in words is "twenty-eight million, seven hundred eighty-eight thousand, four hundred sixty-six".