28945235 has 16 divisors (see below), whose sum is σ = 38776320. Its totient is φ = 20559840.

The previous prime is 28945199. The next prime is 28945249. The reversal of 28945235 is 53254982.

It is not a de Polignac number, because 28945235 - 2¹⁰ = 28944211 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3755 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (2423520).

Almost surely, 2^28945235 is an apocalyptic number.

28945235 is a deficient number, since it is larger than the sum of its proper divisors (9831085).

28945235 is a wasteful number, since it uses less digits than its factorization.

28945235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12298.

The product of its digits is 86400, while the sum is 38.

The square root of 28945235 is about 5380.0776016708. The cubic root of 28945235 is about 307.0381636535.

The spelling of 28945235 in words is "twenty-eight million, nine hundred forty-five thousand, two hundred thirty-five".