28953135 has 12 divisors (see below), whose sum is σ = 50185512. Its totient is φ = 15441648.

The previous prime is 28953103. The next prime is 28953137. The reversal of 28953135 is 53135982.

It is not a de Polignac number, because 28953135 - 2⁵ = 28953103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28953135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28953137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321657 + ... + 321746.

It is an arithmetic number, because the mean of its divisors is an integer number (4182126).

Almost surely, 2^28953135 is an apocalyptic number.

28953135 is a deficient number, since it is larger than the sum of its proper divisors (21232377).

28953135 is a wasteful number, since it uses less digits than its factorization.

28953135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643414 (or 643411 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 28953135 is about 5380.8117417356. The cubic root of 28953135 is about 307.0660943400.

The spelling of 28953135 in words is "twenty-eight million, nine hundred fifty-three thousand, one hundred thirty-five".