5906 has 4 divisors (see below), whose sum is σ = 8862. Its totient is φ = 2952.
The previous prime is 5903. The next prime is 5923. The reversal of 5906 is 6095.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 4225 + 1681 = 65^2 + 41^2 .
It is a Curzon number.
It is a plaindrome in base 11.
It is not an unprimeable number, because it can be changed into a prime (5903) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1475 + ... + 1478.
25906 is an apocalyptic number.
5906 is a deficient number, since it is larger than the sum of its proper divisors (2956).
5906 is a wasteful number, since it uses less digits than its factorization.
5906 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2955.
The product of its (nonzero) digits is 270, while the sum is 20.
The square root of 5906 is about 76.8505042274. The cubic root of 5906 is about 18.0758119362.
Subtracting from 5906 its sum of digits (20), we obtain a triangular number (5886 = T108).
The spelling of 5906 in words is "five thousand, nine hundred six".
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