87209336 has 8 divisors (see below), whose sum is σ = 163517520. Its totient is φ = 43604664.

The previous prime is 87209329. The next prime is 87209341. The reversal of 87209336 is 63390278.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 87209336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5450576 + ... + 5450591.

It is an arithmetic number, because the mean of its divisors is an integer number (20439690).

Almost surely, 2^87209336 is an apocalyptic number.

It is an amenable number.

87209336 is a deficient number, since it is larger than the sum of its proper divisors (76308184).

87209336 is a wasteful number, since it uses less digits than its factorization.

87209336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10901173 (or 10901169 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 87209336 is about 9338.5938984410. The cubic root of 87209336 is about 443.4598712922.

The spelling of 87209336 in words is "eighty-seven million, two hundred nine thousand, three hundred thirty-six".