28860101 has 16 divisors (see below), whose sum is σ = 32928768. Its totient is φ = 25132800.

The previous prime is 28860089. The next prime is 28860103. The reversal of 28860101 is 10106882.

It is a de Polignac number, because none of the positive numbers 2^k-28860101 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 (28860103) 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, 10931 + ... + 13311.

It is an arithmetic number, because the mean of its divisors is an integer number (2058048).

Almost surely, 2^28860101 is an apocalyptic number.

It is an amenable number.

28860101 is a deficient number, since it is larger than the sum of its proper divisors (4068667).

28860101 is a wasteful number, since it uses less digits than its factorization.

28860101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 28860101 is about 5372.1598077496. The cubic root of 28860101 is about 306.7368468609.

Adding to 28860101 its reverse (10106882), we get a palindrome (38966983).

The spelling of 28860101 in words is "twenty-eight million, eight hundred sixty thousand, one hundred one".