28824678 has 12 divisors (see below), whose sum is σ = 62453508. Its totient is φ = 9608220.

The previous prime is 28824671. The next prime is 28824683. The reversal of 28824678 is 87642882.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28824671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 800668 + ... + 800703.

It is an arithmetic number, because the mean of its divisors is an integer number (5204459).

Almost surely, 2^28824678 is an apocalyptic number.

28824678 is an abundant number, since it is smaller than the sum of its proper divisors (33628830).

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

28824678 is a wasteful number, since it uses less digits than its factorization.

28824678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601379 (or 1601376 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 28824678 is about 5368.8618905686. The cubic root of 28824678 is about 306.6112988153.

The spelling of 28824678 in words is "twenty-eight million, eight hundred twenty-four thousand, six hundred seventy-eight".