28898603 has 8 divisors (see below), whose sum is σ = 31128576. Its totient is φ = 26749800.

The previous prime is 28898599. The next prime is 28898609. The reversal of 28898603 is 30689882.

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

It is a cyclic number.

It is not a de Polignac number, because 28898603 - 2² = 28898599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28898609) 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, 19553 + ... + 20978.

It is an arithmetic number, because the mean of its divisors is an integer number (3891072).

Almost surely, 2^28898603 is an apocalyptic number.

28898603 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28898603 is a deficient number, since it is larger than the sum of its proper divisors (2229973).

28898603 is a wasteful number, since it uses less digits than its factorization.

28898603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40585.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 28898603 is about 5375.7420883074. The cubic root of 28898603 is about 306.8731911989.

The spelling of 28898603 in words is "twenty-eight million, eight hundred ninety-eight thousand, six hundred three".