2497 has 4 divisors (see below), whose sum is σ = 2736. Its totient is φ = 2260.
The previous prime is 2477. The next prime is 2503. The reversal of 2497 is 7942.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2497 - 211 = 449 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 14.
It is not an unprimeable number, because it can be changed into a prime (2417) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103 + ... + 124.
It is an arithmetic number, because the mean of its divisors is an integer number (684).
It is a Proth number, since it is equal to 39 ⋅ 26 + 1 and 39 < 26.
It is an amenable number.
2497 is a deficient number, since it is larger than the sum of its proper divisors (239).
2497 is a wasteful number, since it uses less digits than its factorization.
2497 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 238.
The product of its digits is 504, while the sum is 22.
The square root of 2497 is about 49.9699909946. The cubic root of 2497 is about 13.5666570748.
Subtracting 2497 from its reverse (7942), we obtain a palindrome (5445).
It can be divided in two parts, 249 and 7, that added together give a 8-th power (256 = 28).
The spelling of 2497 in words is "two thousand, four hundred ninety-seven".
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