22807 has 2 divisors, whose sum is σ = 22808.
Its totient is φ = 22806.
The previous prime is 22787. The next prime is 22811. The reversal of 22807 is 70822.
It can be divided in two parts, 2 and 2807, that added together give a square (2809 = 532).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 22807 - 27 = 22679 is a prime.
It is a Chen prime.
22807 is a lucky number.
It is equal to p2548 and since 22807 and 2548 have the same sum of digits, it is a Honaker prime.
It is a plaindrome in base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (22817) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11403 + 11404.
It is an arithmetic number, because the mean of its divisors is an integer number (11404).
222807 is an apocalyptic number.
22807 is a deficient number, since it is larger than the sum of its proper divisors (1).
22807 is an equidigital number, since it uses as much as digits as its factorization.
22807 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 224, while the sum is 19.
The square root of 22807 is about 151.0198662428.
The cubic root of 22807 is about 28.3589004131.
The spelling of 22807 in words is "twenty-two thousand, eight hundred seven".