163407 has 4 divisors (see below), whose sum is σ = 217880. Its totient is φ = 108936.
The previous prime is 163403. The next prime is 163409. The reversal of 163407 is 704361.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 163407 - 22 = 163403 is a prime.
It is a D-number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (163403) 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, 27232 + ... + 27237.
It is an arithmetic number, because the mean of its divisors is an integer number (54470).
2163407 is an apocalyptic number.
163407 is a deficient number, since it is larger than the sum of its proper divisors (54473).
163407 is an equidigital number, since it uses as much as digits as its factorization.
163407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54472.
The product of its (nonzero) digits is 504, while the sum is 21.
The square root of 163407 is about 404.2363170226. The cubic root of 163407 is about 54.6709833659.
Adding to 163407 its reverse (704361), we get a palindrome (867768).
The spelling of 163407 in words is "one hundred sixty-three thousand, four hundred seven".
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