28946 has 8 divisors (see below), whose sum is σ = 44604. Its totient is φ = 14080.

The previous prime is 28933. The next prime is 28949. The reversal of 28946 is 64982.

It can be written as a sum of positive squares in 2 ways, for example, as 25921 + 3025 = 161^2 + 55^2 .

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

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28949) 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, 95 + ... + 258.

2²⁸⁹⁴⁶ is an apocalyptic number.

28946 is a deficient number, since it is larger than the sum of its proper divisors (15658).

28946 is a wasteful number, since it uses less digits than its factorization.

28946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its digits is 3456, while the sum is 29.

The square root of 28946 is about 170.1352403237. The cubic root of 28946 is about 30.7040868556.

The spelling of 28946 in words is "twenty-eight thousand, nine hundred forty-six".