28789101 has 40 divisors (see below), whose sum is σ = 47625600. Its totient is φ = 17184960.

The previous prime is 28789091. The next prime is 28789127. The reversal of 28789101 is 10198782.

It is not a de Polignac number, because 28789101 - 2⁵ = 28789069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28789001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70185 + ... + 70593.

It is an arithmetic number, because the mean of its divisors is an integer number (1190640).

Almost surely, 2^28789101 is an apocalyptic number.

It is an amenable number.

28789101 is a deficient number, since it is larger than the sum of its proper divisors (18836499).

28789101 is a wasteful number, since it uses less digits than its factorization.

28789101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 28789101 is about 5365.5475955395. The cubic root of 28789101 is about 306.4851013820.

The spelling of 28789101 in words is "twenty-eight million, seven hundred eighty-nine thousand, one hundred one".