28261435 has 8 divisors (see below), whose sum is σ = 34263936. Its totient is φ = 22375680.

The previous prime is 28261433. The next prime is 28261447. The reversal of 28261435 is 53416282.

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

It is not a de Polignac number, because 28261435 - 2¹ = 28261433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28261397 and 28261406.

It is not an unprimeable number, because it can be changed into a prime (28261433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28651 + ... + 29620.

It is an arithmetic number, because the mean of its divisors is an integer number (4282992).

Almost surely, 2^28261435 is an apocalyptic number.

28261435 is a deficient number, since it is larger than the sum of its proper divisors (6002501).

28261435 is an equidigital number, since it uses as much as digits as its factorization.

28261435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58373.

The product of its digits is 11520, while the sum is 31.

The square root of 28261435 is about 5316.1485118458. The cubic root of 28261435 is about 304.6010550381.

The spelling of 28261435 in words is "twenty-eight million, two hundred sixty-one thousand, four hundred thirty-five".