39497 has 4 divisors (see below), whose sum is σ = 39936. Its totient is φ = 39060.

The previous prime is 39461. The next prime is 39499. The reversal of 39497 is 79493.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 39497 - 2⁸ = 39241 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29 + ... + 282.

It is an arithmetic number, because the mean of its divisors is an integer number (9984).

2³⁹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

39497 is a deficient number, since it is larger than the sum of its proper divisors (439).

39497 is a wasteful number, since it uses less digits than its factorization.

39497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438.

The product of its digits is 6804, while the sum is 32.

The square root of 39497 is about 198.7385216811. The cubic root of 39497 is about 34.0555608287.

The spelling of 39497 in words is "thirty-nine thousand, four hundred ninety-seven".