88065209 has 4 divisors (see below), whose sum is σ = 92700240. Its totient is φ = 83430180.

The previous prime is 88065193. The next prime is 88065223. The reversal of 88065209 is 90256088.

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 88065209 - 2⁴ = 88065193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88065239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2317487 + ... + 2317524.

It is an arithmetic number, because the mean of its divisors is an integer number (23175060).

Almost surely, 2^88065209 is an apocalyptic number.

It is an amenable number.

88065209 is a deficient number, since it is larger than the sum of its proper divisors (4635031).

88065209 is a wasteful number, since it uses less digits than its factorization.

88065209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635030.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 88065209 is about 9384.3065273892. The cubic root of 88065209 is about 444.9058572889.

The spelling of 88065209 in words is "eighty-eight million, sixty-five thousand, two hundred nine".