28951 has 8 divisors (see below), whose sum is σ = 33264. Its totient is φ = 24960.

The previous prime is 28949. The next prime is 28961. The reversal of 28951 is 15982.

28951 is nontrivially palindromic in base 16.

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

It is not a de Polignac number, because 28951 - 2¹ = 28949 is a prime.

It is a Duffinian number.

28951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28901) 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, 156 + ... + 286.

It is an arithmetic number, because the mean of its divisors is an integer number (4158).

2²⁸⁹⁵¹ is an apocalyptic number.

28951 is a deficient number, since it is larger than the sum of its proper divisors (4313).

28951 is a wasteful number, since it uses less digits than its factorization.

28951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161.

The product of its digits is 720, while the sum is 25.

The square root of 28951 is about 170.1499338819. The cubic root of 28951 is about 30.7058546485.

It can be divided in two parts, 28 and 951, that added together give a palindrome (979).

The spelling of 28951 in words is "twenty-eight thousand, nine hundred fifty-one".