28859072 has 28 divisors (see below), whose sum is σ = 62474856. Its totient is φ = 13117440.

The previous prime is 28859069. The next prime is 28859107. The reversal of 28859072 is 27095882.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19793 + ... + 21200.

Almost surely, 2^28859072 is an apocalyptic number.

28859072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28859072 is an abundant number, since it is smaller than the sum of its proper divisors (33615784).

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

28859072 is a wasteful number, since it uses less digits than its factorization.

28859072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41016 (or 41006 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 28859072 is about 5372.0640353592. The cubic root of 28859072 is about 306.7332012745.

The spelling of 28859072 in words is "twenty-eight million, eight hundred fifty-nine thousand, seventy-two".