28261033 has 4 divisors (see below), whose sum is σ = 28379520. Its totient is φ = 28142548.

The previous prime is 28261027. The next prime is 28261039. The reversal of 28261033 is 33016282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (28261027) and next prime (28261039).

It is a cyclic number.

It is not a de Polignac number, because 28261033 - 2¹³ = 28252841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28260989 and 28261007.

It is not an unprimeable number, because it can be changed into a prime (28261039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58885 + ... + 59362.

It is an arithmetic number, because the mean of its divisors is an integer number (7094880).

Almost surely, 2^28261033 is an apocalyptic number.

It is an amenable number.

28261033 is a deficient number, since it is larger than the sum of its proper divisors (118487).

28261033 is a wasteful number, since it uses less digits than its factorization.

28261033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118486.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 28261033 is about 5316.1107023838. The cubic root of 28261033 is about 304.5996107826.

The spelling of 28261033 in words is "twenty-eight million, two hundred sixty-one thousand, thirty-three".