87882009 has 8 divisors (see below), whose sum is σ = 117255360. Its totient is φ = 58548336.

The previous prime is 87882001. The next prime is 87882017. The reversal of 87882009 is 90028878.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87882001) and next prime (87882017).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87882009 - 2³ = 87882001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87882001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4294 + ... + 13935.

It is an arithmetic number, because the mean of its divisors is an integer number (14656920).

Almost surely, 2^87882009 is an apocalyptic number.

It is an amenable number.

87882009 is a deficient number, since it is larger than the sum of its proper divisors (29373351).

87882009 is a wasteful number, since it uses less digits than its factorization.

87882009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19839.

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

The square root of 87882009 is about 9374.5404687377. The cubic root of 87882009 is about 444.5971340210.

The spelling of 87882009 in words is "eighty-seven million, eight hundred eighty-two thousand, nine".