43097 has 4 divisors (see below), whose sum is σ = 43776. Its totient is φ = 42420.

The previous prime is 43093. The next prime is 43103. The reversal of 43097 is 79034.

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 43097 - 2² = 43093 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (43093) 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, 233 + ... + 374.

It is an arithmetic number, because the mean of its divisors is an integer number (10944).

2⁴³⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

43097 is a deficient number, since it is larger than the sum of its proper divisors (679).

43097 is an equidigital number, since it uses as much as digits as its factorization.

43097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 43097 is about 207.5981695488. The cubic root of 43097 is about 35.0603042008.

Subtracting 43097 from its reverse (79034), we obtain a cube (35937 = 33³).

The spelling of 43097 in words is "forty-three thousand, ninety-seven".