28985755 has 8 divisors (see below), whose sum is σ = 34838352. Its totient is φ = 23151648.

The previous prime is 28985717. The next prime is 28985767. The reversal of 28985755 is 55758982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28985755 - 2¹¹ = 28983707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28985699 and 28985708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897 + ... + 7666.

It is an arithmetic number, because the mean of its divisors is an integer number (4354794).

Almost surely, 2^28985755 is an apocalyptic number.

28985755 is a deficient number, since it is larger than the sum of its proper divisors (5852597).

28985755 is an equidigital number, since it uses as much as digits as its factorization.

28985755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9245.

The product of its digits is 1008000, while the sum is 49.

The square root of 28985755 is about 5383.8420296290. The cubic root of 28985755 is about 307.1813695559.

The spelling of 28985755 in words is "twenty-eight million, nine hundred eighty-five thousand, seven hundred fifty-five".