97000509 has 4 divisors (see below), whose sum is σ = 129334016. Its totient is φ = 64667004.

The previous prime is 97000493. The next prime is 97000511. The reversal of 97000509 is 90500079.

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.

It is not a de Polignac number, because 97000509 - 2⁴ = 97000493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97000109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16166749 + ... + 16166754.

It is an arithmetic number, because the mean of its divisors is an integer number (32333504).

Almost surely, 2^97000509 is an apocalyptic number.

It is an amenable number.

97000509 is a deficient number, since it is larger than the sum of its proper divisors (32333507).

97000509 is a wasteful number, since it uses less digits than its factorization.

97000509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32333506.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 97000509 is about 9848.8836423221. The cubic root of 97000509 is about 459.4708928972.

The spelling of 97000509 in words is "ninety-seven million, five hundred nine", and thus it is an aban number.