28988678 has 8 divisors (see below), whose sum is σ = 43771440. Its totient is φ = 14398200.

The previous prime is 28988653. The next prime is 28988683. The reversal of 28988678 is 87688982.

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

It is a Curzon number.

It is a congruent number.

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, 47693 + ... + 48296.

It is an arithmetic number, because the mean of its divisors is an integer number (5471430).

Almost surely, 2^28988678 is an apocalyptic number.

28988678 is a deficient number, since it is larger than the sum of its proper divisors (14782762).

28988678 is a wasteful number, since it uses less digits than its factorization.

28988678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96142.

The product of its digits is 3096576, while the sum is 56.

The square root of 28988678 is about 5384.1134832022. The cubic root of 28988678 is about 307.1916948687.

The spelling of 28988678 in words is "twenty-eight million, nine hundred eighty-eight thousand, six hundred seventy-eight".