28010 has 8 divisors (see below), whose sum is σ = 50436. Its totient is φ = 11200.

The previous prime is 28001. The next prime is 28019. The reversal of 28010 is 1082.

It is an interprime number because it is at equal distance from previous prime (28001) and next prime (28019).

It can be written as a sum of positive squares in 2 ways, for example, as 27889 + 121 = 167^2 + 11^2 .

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

It is a nialpdrome in base 8 and base 13.

It is a junction number, because it is equal to n+sod(n) for n = 27982 and 28000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28019) 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, 1391 + ... + 1410.

2²⁸⁰¹⁰ is an apocalyptic number.

28010 is a deficient number, since it is larger than the sum of its proper divisors (22426).

28010 is a wasteful number, since it uses less digits than its factorization.

28010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 28010 is about 167.3618833546. The cubic root of 28010 is about 30.3695042754.

Adding to 28010 its reverse (1082), we get a palindrome (29092).

The spelling of 28010 in words is "twenty-eight thousand, ten".