28898545 has 16 divisors (see below), whose sum is σ = 37501632. Its totient is φ = 21251520.

The previous prime is 28898543. The next prime is 28898599. The reversal of 28898545 is 54589882.

It is not a de Polignac number, because 28898545 - 2¹ = 28898543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28898543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17610 + ... + 19180.

It is an arithmetic number, because the mean of its divisors is an integer number (2343852).

Almost surely, 2^28898545 is an apocalyptic number.

It is an amenable number.

28898545 is a deficient number, since it is larger than the sum of its proper divisors (8603087).

28898545 is a wasteful number, since it uses less digits than its factorization.

28898545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872.

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

The square root of 28898545 is about 5375.7366937007. The cubic root of 28898545 is about 306.8729858988.

The spelling of 28898545 in words is "twenty-eight million, eight hundred ninety-eight thousand, five hundred forty-five".