28622 has 8 divisors (see below), whose sum is σ = 46872. Its totient is φ = 13000.

The previous prime is 28621. The next prime is 28627. The reversal of 28622 is 22682.

28622 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

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

It is a fibodiv number, since the Fibonacci-like sequence with seeds 286 and 22 contains 28622 itself.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 28594 and 28603.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28622.

It is not an unprimeable number, because it can be changed into a prime (28621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629 + ... + 672.

It is an arithmetic number, because the mean of its divisors is an integer number (5859).

2²⁸⁶²² is an apocalyptic number.

28622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28622 is a deficient number, since it is larger than the sum of its proper divisors (18250).

28622 is a wasteful number, since it uses less digits than its factorization.

28622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314.

The product of its digits is 384, while the sum is 20.

The square root of 28622 is about 169.1803771127. The cubic root of 28622 is about 30.5890971738.

The spelling of 28622 in words is "twenty-eight thousand, six hundred twenty-two".