28968435 has 20 divisors (see below), whose sum is σ = 51929328. Its totient is φ = 15449616.

The previous prime is 28968413. The next prime is 28968437. The reversal of 28968435 is 53486982.

It is not a de Polignac number, because 28968435 - 2⁷ = 28968307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (28968437) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35359 + ... + 36168.

Almost surely, 2^28968435 is an apocalyptic number.

28968435 is a deficient number, since it is larger than the sum of its proper divisors (22960893).

28968435 is an equidigital number, since it uses as much as digits as its factorization.

28968435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71544 (or 71535 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 28968435 is about 5382.2332725366. The cubic root of 28968435 is about 307.1201735031.

It can be divided in two parts, 28968 and 435, that added together give a triangular number (29403 = T₂₄₂).

The spelling of 28968435 in words is "twenty-eight million, nine hundred sixty-eight thousand, four hundred thirty-five".