28488559 has 8 divisors (see below), whose sum is σ = 32429952. Its totient is φ = 24772440.

The previous prime is 28488547. The next prime is 28488569. The reversal of 28488559 is 95588482.

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

It is not a de Polignac number, because 28488559 - 2¹³ = 28480367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28488539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56049 + ... + 56554.

It is an arithmetic number, because the mean of its divisors is an integer number (4053744).

Almost surely, 2^28488559 is an apocalyptic number.

28488559 is a deficient number, since it is larger than the sum of its proper divisors (3941393).

28488559 is a wasteful number, since it uses less digits than its factorization.

28488559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112637.

The product of its digits is 921600, while the sum is 49.

The square root of 28488559 is about 5337.4674706269. The cubic root of 28488559 is about 305.4148578363.

The spelling of 28488559 in words is "twenty-eight million, four hundred eighty-eight thousand, five hundred fifty-nine".