88087209 has 16 divisors (see below), whose sum is σ = 135121920. Its totient is φ = 50000400.

The previous prime is 88087199. The next prime is 88087231. The reversal of 88087209 is 90278088.

It is a happy number.

It is not a de Polignac number, because 88087209 - 2⁸ = 88086953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88087289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10719 + ... + 17060.

It is an arithmetic number, because the mean of its divisors is an integer number (8445120).

Almost surely, 2^88087209 is an apocalyptic number.

It is an amenable number.

88087209 is a deficient number, since it is larger than the sum of its proper divisors (47034711).

88087209 is a wasteful number, since it uses less digits than its factorization.

88087209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27940.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 88087209 is about 9385.4786239168. The cubic root of 88087209 is about 444.9429022394.

The spelling of 88087209 in words is "eighty-eight million, eighty-seven thousand, two hundred nine".