87333309 has 20 divisors (see below), whose sum is σ = 149099104. Its totient is φ = 49904424.

The previous prime is 87333299. The next prime is 87333313. The reversal of 87333309 is 90333378.

It is a happy number.

It is not a de Polignac number, because 87333309 - 2²⁰ = 86284733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87333319) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76447 + ... + 77580.

Almost surely, 2^87333309 is an apocalyptic number.

It is an amenable number.

87333309 is a deficient number, since it is larger than the sum of its proper divisors (61765795).

87333309 is a wasteful number, since it uses less digits than its factorization.

87333309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154046 (or 154037 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 87333309 is about 9345.2292106721. The cubic root of 87333309 is about 443.6699062216.

The spelling of 87333309 in words is "eighty-seven million, three hundred thirty-three thousand, three hundred nine".